We are getting confused by the more we learn, the more we don't know. We are going to full time and want to spend under $350k. We like the Allegro Bus (made by Tiffin). But some say DON'T buy the Freightliner Chassis! I read the chat about get a Cummins, not a Cat, so I will take this to heart. But which chassis should I watch out for? One salesman had a brand that had cross struts in between the storage units downstairs. He said without those, you will twist and tweak all the time. One person said the Freightliner can be worked on in more places, another said it is the cheapest brand and stay away. Should I try to get a 450 or 500 diesel? Or will 350 do just fine? Alot of people said stay away from Winnebago, it will fall apart. Does it matter if the side walls are not metal? The metal walls come in a more expensive rig than we want. We want no more than 42', diesel pusher with 4 slides. Thanks!