Thanks for all the details, Dottie and Debbie.
I think I will go with SCAT for now and get a feeling of it.

I've also noticed that the school district's application form for acceleration has a line item for Woodcock Johnson test. Can that be the out-of-level test used by the school district? (I am afraid of asking too much to the teacher, thus trying to do these outside tests before asking them to do anything.)