After years of hauling everything (including hay and loads to the dump) in an aging 15-pass van, I'm now looking for a trailer to pull stuff including a 14-foot raft. There are at least a couple models out there (PJ and Karavan) that let you remove the side rails and tailgate/ramp so it could be used both as a flatbed rafting trailer and with rails up to haul junk, slash, etc. I think a 12-foot bed would suffice with a bit of overhand in the back. Anyone have experience with this setup? Karavan definitely has mixed reviews, any opinions? Is it possible to add a roller in the back or would that interfere with the tailgate?