I don't know AT but It seems they have a CULT like following and Ive never heard one bashed ever. What you are describing is a real problem in the boat industry - so the guys making smaller boats just charge about the same or stop making them all together. Which hurts us all. Some guys can buy any size boat they want, but actually prefer a smaller rig for storage/ small local lake/ handling reasons-
I gotta believe these builder are pretty motivated to work with anyone right now just to keep staff busy.
At the same time all the customs shops are really happy at this stage to do a re-power and cleanup/new interior(especially if its one of "theirs") and if its shop done vs. a garage guy, Id be completely happy and still pick that over a factory ride