Need advice - Newbie shopping for a Used Travel Trailer

Welcome to the forum. I can't give you advice on which unit is better or worse than others.
However, condition is what you want to look for in a used unit.
A well maintained low end unit is probably a better buy than a poorly maintained high end unit.
Leaks are a major concern for any RV. A small leak can cause a lot of damage if not repaired.

I'm sure someone will give you a better answer. Have fun with your search and enjoy your travels.