Thanks and after a short winter break I'm back at it..
I cut the hole this weekend, I was going to buy a rubber accordion seal but after talking to the body shop guy at General RV I'll be doing something different. His words " Every Class C RV and Most Ford Cube truck have the cab bolted to the chassis" it wont twist, if it does you bent your frame and will have bigger issues.. The advantage for me is only cosmetic, a rubber seal wont look as nice..
Also most people don't like the a table/bed combo and would prefer a couch. So I punted and will install a couch.. one problem I ran into is finding a couch small enough to get into the area and thrw a 24" door way.
Problem solved (i Think) I found a 74" W couch for 169.99, but its short.. so I'll cut off the legs and build a base from Overhead kitchen cabinets to raise it up to normal tall people height. This will also add a little more storage..