Boas tend to do fine in bigger tanks even if they are smaller, provided they have enough hides, etc. I moved my 1 year and 3 month old male BI into a 6X2' and he's doing great and growing and gobbling down food, and is still a totally chill animal.
I have all Boaphile tanks and love them. I cannot comment on current lead times, but if you call Jeff Ronne, I am sure he can give you an accurate window.
https://ball-pythons.net/forums/show...t=reptile+area
I have nothing negative to say about AP's, but the lead time turned me off. I also liked how Jeff uses the tanks himself and was able to configure each tank to each individual reptiles needs.