Used prices for trailers, campers, ATV/UTV’s have been nuts for years and it’s only gotten worse since COVID. I bought a 2016 RZR 1000, a 2017 14’ trailer and sold it all for $750 less than I paid for it all two years and 1200 hard miles later.
I would order a new one or make a run to NM if I were you.
Good luck in your search.