Quality construction

I have seen morer motorhome construction videos than I can count. I like Newmar and Winnebago. Some motorhomes (not mentioning names) use cabinetry for structural support whereas Newmar and Winnebago don't. they use interlocking framework. I would go diesel when you go to class A that is my feelings. I get almost 10 mile per gallon with my old bus. If it were me I would get a used winnebago Vectra or the like. I really like the Winnebago Journey as well. If I was going to get a gasoline model i would go with a larger class C again look at how the walls are constructed interlocking roof and wall supports are key. I can't find any manufacturer that don't use vacuum formed walls. Buses are built with skeleton structure than hang skin on the outside than install interior walls on the inside then trim it out. Motorhomes have the chassis and they put premade walls and floors on them and then tie them all together. and it's how they tie them all in that i focus on. That is my advice. If diesel I want a sleeved engine so I look for 350 cummins or higher. the Cat C-7 the Cummnins 5.9/6.7 are not sleeved but parent bore constructed.