I have considered moving the back wall forward and using the back for a hauler but honestly I want more room. Full size EVERYTHING!! Hahaha.. a full size bed, shower, and toilet can turn a three day weekend full of mud, makers mark and bratwurst into a holiday inn. Haha! I'll probably regret that decision somewhere along I20 when I'm rolling 60ft long at 50 mph.
But, I like to be prepared.. and the more room for tools, food, clothing, spare parts, bedding, toiletries, and buddies who need a place to crash, the better..
As of now, my plan is full bed and bath in the back, kitchen/bar in the middle and "lounge" up front. Added storage underneath. If in fact i do habe the at545, a trans swap is not in my budget right now, so probably a heavy duty external cooler and filter and a temp gauge for the at545. I'm not so concerned with speed as I am with reliability and longevity.