Well....if you want maximum living space for a toy hauler, and need only enough "garage" room for "A" Harley or "AN" ATV or "A" golf cart (or the like) AND you happen to have a one ton dually then look at the Grand Design Momentum 376TH. Its on the big size....41' long...but with the bedroom over top of the garage section its like having a full size 5th wheel with the luxury of a garage!! I did about 18 months of research and it did come down to the KZ Durango series and the Momentum and....well....you can see below what the decision was. We will too be retiring and full-timing either this summer or next. Can't wait till that adventure begins!!