I have the 2000 Lance 1010 and was thinking of putting batteries in the Generator area. I was worried about loosing space. It is on my "to do" list, although near the bottom. I like your set up okan-star.
Did in my legend 500 , which is about the same camper, flooded though Put group 29`s on drawer slides ( 200lb slides) , with an inverter in the cab that backs up against it ,also moved converter into same cab