I agree with everything mentioned above. Also, it might be worth trying to track down an AF developmental pediatrician. They are the subject matter experts and would likely know which places are best and/or which ones to try and avoid like the plague. Most consultants have souls, so hopefully this works out.
I was in Oak Harbor, which was EFM Cat 5 (and shouldn't have been). Kids had to travel 2+ hours for every cardiology, endo, heme/onc appt, but we actually had really good access to ABA services within 15 minutes. When I was a resident I watched a Peds Devo guy diagnose an AF child with autism and walk the parents through the process of breaking orders because the place they were going had poor services.
Also, 2 years of ABA can accomplish a lot. A number of kids age out of ABA eventually, some in as little as 2 years. Whatever you do, don't be hesitant to start services for fear they won't be continuing. Again, a lot happens in 2 years. Still go through the EFM process as outlined above, but try and stay positive that you have a diagnosis and are starting services. There will be military hiccups, but often times there are great services available, especially with autism. (and I'm NOT a pro-military guy at all).
Good luck!