Sorry so slow to respond. Learning about the language of profiles helps a lot. I'll be checking out Bighorns, more Alfas, etc.
I didn't know about the 10 year age rule. I'm actually less worried about the age per se but more about modifications I want to make, like adding a pop-up kinda sorta roof over the bedroom area. And I'm hoping to add a long fold-down porch, door side, with poles holding up an awning. I'm worried these things would look peculiar going in and raise some RV part managers' alarm bells. Worse still, what if they let you in, then you popped up the roof and folded out the porch, and *then* were asked to leave!