For your ultimate happiness you'll probably want to go with a new unit.
Understand that all units aren't created equally as far as quality goes.
Construction should be a number one factor, but often isn't.
Killing a trailer made with cheap construction is pretty easy to do!
Mindfully look around at all the models that are being offered
Overlook "demo models" and "too cheap" looking deals"
Do what you want to do as far as floor plans, as long as it fits you.
See all the trailers that you're able to see - it may take two days.
WoodGlue