It will just be the DW and I, so space isn't really needed. Our longest trips will be when we are hunting and storage isn't even an issue because we essentially wear the same thing every day. I don't see the perpendicular couch being a problem with the two of us either.
I think I am going to go a different route though. Going to wait until the end of the summer and hope to catch a good deal on a new unit. Take the money we have now and pay off the TV and save that money. If we have to finance the new TT when time comes, it would be fine with me.