You're welcome, Laurie. If home/afterschooling is an option, there are a number of relatively parent-friendly, and generally affordable (some more than others) OG home therapy options, including
All About Reading/All About Spelling
http://www.allaboutlearningpress.com/Logic of English
http://www.logicofenglish.com/essentialsReading Horizons: Elevate
http://athome.readinghorizons.com/store/elevate/overviewRosetta Stone Lexia
http://www.rosettastone.com/homeschool/readingBarton
https://bartonreading.com/(RH and RS are or have online options).
I've listed them more-or-less in my order of personal preference, taking cost, ease of use, flexibility, and range into account. Another person might prioritize differently, and come up with a different ranking. Any one of them would be a reputable, research-based intervention, with a high likelihood of effectiveness.
The first two are easy enough to use that you could even hire a bright college student to use the curriculum for tutoring, at much less than a certified OG tutor. AAR/AAS separates reading and spelling, so they don't have to go at the same pace. LoE integrates them, which may be better for students whose reading and spelling are at comparable levels. RH and RS have online options, for which you wouldn't need a tutor at all. Reading Horizons' online subscription actually includes accounts for two students in the base price. (The disadvantage of RH and RS is that both take students only through the grade five reading decoding level--though that does cover the vast majority of phonetic decoding skills, and may be enough to get your girls on their way.) Barton has the smallest increments, in terms of developing reading skills, and is the priciest of the options. Some children will need those more finely-graded increments, especially in the early, phonemic awareness-heavy levels.
Approximate cost for two students to complete a reading program ranges from ~$200 to ~$500, plus any tutor costs, for the programs other than Barton, and is ~$3000, plus tutor costs, for Barton. Both online programs come to about $200 for a 12-month subscription for two students, but RH has a heavily discounted renewal cost of $50 per additional year (still includes both students).
-a
