New Winnebago on Ford Tansit

As a few of you might recall, I am not a lover of slide outs. But that rear slide making a walk-around queen bed is quite nice, as long as the bed remains a bed when pulled in. I would want a real bed, not a couch bed back there. I might be persuaded to consider that. But the added weight is always concerning on the lighter rated chassis like the Transit, Sprinter, and E350. A short 24 footer with that rear slide out would put me at ease if it were built on the E450 chassis. Nothing less.