For SOTAR it's worth the wait for their fall sale (20% off all boats...) during the first two weeks in October. Cheryl is no longer there (she was excellent), but Joe is and he is also very knowledgeable. I've been working with him on buying a set of legend tubes come this Oct. He'll send you pics of color schemes and fabric color samples if you want.
For AIRE they're more widely available. Towards the end of the boating season in the fall you should look on AIRE'S website for "Hot Sales". I bought a demo set of tubes from them at a pretty good deal a couple years back. If you don't buy direct from AIRE, I'd contact Dusty at DRL River Gypsies- he usually has lots of boats to choose from-new and used. He deals with SOTAR and AIRE, and sells frames, so you might find your "one stop shopping" with him. He also fabricates high clearance cat frames.
If not DRL, talk to AIRE and see if there are any AIRE or for that matter, SOTAR reps in your area and deal with them directly. Often times they can swing folks a good deal on boats.
Other frame options may include contacting Dave Nissan who makes Madcatr aluminum frames which are really nice. He's roughly a year out in making them, so if you're into his frame designs, act soon and don't expect it for a while. Ronnie McLay fabricates steel frames- PRE (Payette River Equipment) frames of which I use and like. He can customize anything you want and his turn around is 2-3 weeks depending on how busy he is. He's based out of Ontario, Oregon. Perhaps not as light or sexy as a Madcatr, but super tough and a good design.
Being that you're on the East coast, shipping all this stuff is gonna run into some cash unless you can somehow find another person around where you are and split motor freight costs... Boatertalk is another forum that seems to be more East Coastish-maybe put out a thread there to see if anyone is looking to throw down for new rigs.
Have fun getting your new rig!
Shoot me a PM if you have any specific questions about cats...
Doug