I can see that I've come to a very good place with these questions.

THANK YOU for taking the time to thoughtfully reply to me - you are all reaching out to soothe a stranger's worries and it's a very generous thing.
(Perhaps I should have posted this up on the 2E forum. Anyway I can do that? I hate to clutter up this forum if my post really belongs somewhere else!)
(BTW, what does 'DD' stand for?)
As for the test scores on the WISC-IV. Her GAI was 154 and her FSIQ including Working Memory and Processing Speed is 140/99.6%. She was in the 75% for Digit Span, Letter-Number Seq and Coding and the 91% for Symbol Search. I really don't know how exactly this relates to her dyslexia but can imagine that it might. For Verbal Comprehension she was Similarities 19, Vocabulary 19, Comprehension 15. for Perceptual Reasoning she was Block Design 16, Picture concepts 17, Matrix Reasoning 17. Is this the information that might be useful? I don't know that anyone used extended norms on her 19s or even if it matters.
As for her dyslexia:
On selected subtests of the Woodcock-Johnson III, she scored.... 113/81%/Grade Equivalent 1.6 on Letter Word Identification. 102/56%/GE 1.1 on Reading Fluency. 107/69%/GE 1.1 in Passage comprehension. 122/93%/GE 2.0 in Word Attack. 109/72%/GE 1.3 in Broad Reading.
On the CTOPP - Comprehensive Test of Phonological Processing, she scored....
Elision 11/63%
Blending words 15/95%
Sound Matching 11/63%
Memory for Digits 11/63%
Nonword Repetition 14/91%
Rapid color Naming 5/5%
Rapid object naming 6/9%
Anyway, here's the reply I got from the principal of the highly gifted (PUBLIC) school where our daughter is enrolled for this fall. I felt somewhat encouraged by it and am eager to see how this will all go in practice:
..........................................
Hi (Parent of DD),
When the teachers come back to school at the end of August, we can set up a meeting with you and the classroom teacher. We will be starting our SIT (student intervention team) meetings in October once teachers have had an opportunity to get to know students and have a better understanding of their needs. All of the first and second grade teachers are attending the (Dyslexic Readers) training this summer and will be able to support the work that (DD) does with (Tutor). In addition, all of the first grade teachers have had teaching experience with struggling readers. We will contact you in August to set up a time to meet with (DD's) teacher. We will also schedule a SIT for (DD) in early October.
Best Regards,
(Principal)
..........................................
2E parents, how does that sound so far? In the couple of brief conversations I've had with the principal, I gathered that of the (probably small) 2E population of this school, most are on the autism spectrum and in reading would have problems with comprehension - not decoding like our daughter. She did say "none of these kids is good at everything....they don't come in pretty little packages".
At our daughter's neighborhood school (where she attended kindergarten), she was identified as needing additional support in reading at the beginning of the year but never recognized as gifted. We tested privately. My guess is that other parents with 2E dyslexic soon-to-be 1st Graders are not sending their children to this 'highly gifted' elementary school out of these same concerns or may not realize their kids are highly gifted OR dyslexic yet - for heaven's sake, our 2E daughter got a 98% on her Spring Reading MAP test! (Still, she is clearly struggling. It's complicated!) I can see how indeed with 2E - the giftedness masks the LD and the LD masks the giftedness - making the child seem more average.
I have heard that at this school, students are encouraged to honor each other's differences and support each other. Our daughter is sensitive to the fact that she's not reading quickly like many others. On the school tour, I don't believe I saw any books in the 1st grade classroom that are on the level at which she's reading (will have to do something about that). We've been talking all summer long about what it means to be dyslexic. Hopefully she can educate some of her peers as well and I will be as involved as possible in advocacy for her - I have been reading a few books, including "Overcoming Dyslexia" (Shaywitz), "The Dyslexic Advantage" (Eide & Eide), and "Academic Advocacy for the Gifted: A Parent's Guide" (Gilman). I WELCOME RECOMS FOR ADDITIONAL TITLES, especially anything geared specifically towards 2E Dyslexia. (I've also read "30 years of SENG" and "Parenting Gifted Kids" (Delisle))
SPECIFICALLY, I need to put together a list of questions and requests for the SIT Meeting mentioned above. Would love suggestions about that....everything you all have already written has been helpful.
I know this is probably not recommended, but I considered getting out some rice and showing her (in grains of rice) how her GAI score on the WISC-IV works statistically. I don't want her to get arrogant or lazy, but I really don't want my daughter to feel dumb when she encounters non-dyslexic 1st grade peers who have already independently read the Harry Potter series. (I suppose that its possible that some of these super readers had scores on the WISC-IV that were not as high as my daughter!?!) Our new mantra is basically, "You learn differently than they are teaching" "Your brain is wired differently" "It's just going to take different practice" How in the world will she be able to hold "different" in her mind when they all seem.....better!?! I have to admit that I am afraid - though identified early as highly gifted myself, I spent many years feeling stupid and incompetent...and I didn't have dyslexia or go to a gifted school.
I have no idea if we will find that the teachers are good at fostering intellectual growth and creativity for our daughter's needs, but this question is definitely on our radar. "Defining giftedness solely as academic achievement and the ability to do additional work" will not go over well with our extremely imaginative, artistic, spirited, highly-gifted dyslexic daughter! We are going to do everything we can to emphasize her strengths! I just really hope that we're doing the right thing - our neighborhood school was good and I don't want to be changing her school every year.
Thanks again for anything, everything. We've already received some helpful information. Bring on the suggestions! Would love to hear from more 2E parents, especially of highly/profoundly gifted dyslexic children.