Not cheap, but these are the lightest and best built trailers I have found. No wood used in them at all. No rot.
https://www.livinlite.com/toy-haulers.php
The 7x20 model is really light but not enough cargo room for a new RZR so he'd have to get the 8.5x24 if he was looking to fit one of them. The 8.5x24 has a nice dry weight but the hitch weight of 1030lbs is insane! You'd have to load it to tow with a raptor or you're going to be on the bump stops. Nice trailers though!!