When I was seriously considering a MHP, I kept asking myself 1 question.
"Why do so many MHPs look stereo typical of the image as portrayed in most media?"
The answer I came up with, is most of them are older, run down poorly designed homes, that sit high up off the ground, people park where ever, not in assigned or formed parking spaces. Streets are nasty, no curbs and trash seems to be every where, probably because of client type. Just everything about them is exactly what code enforcement solves in stick built homes.
To get someone willing to buy a new SW, DW or modular in a MHP, they need to know their investment is protected. Many of these new homes are $60k and up- plus delivery & setup. Yes, I know the banks still have over 2 million homes as unlisted REO, but you are now competing with that as they are disposing of homes at prices that are in your range, and of course a stick built does retain value better than a manufactured, even though manufactured are better built.
I personally would put every one on an appropriately sized lot, on a pit so that all the utilities could be run underground, put in plentiful nice street lights, landscape to compliment, fixed parking, homes as close to the ground as possible for appearances, and of course nice high end canvas type awnings over both exterior doors..