Enclosed trailer? What are you pulling it with? That gas motored pickemup you talked about a while back? Good Luck with that...An enclosed tailer, even with the v nose is like pulling a barn on wheels. I rented one from a fellow in AZ when I moved up here. We loaded it with about 10k pounds of stuff. I got the same fuel mileage (diesel) towing it back to AZ empty as I did pulling it up here loaded. It did have the v-nose on it....Moral....with an older, tired, under powered pickemup you are setting yourself up for a nightmare....unless you do not ever plan on going up any serious hills.....This is just my opinion...take it for what it is worth....I would be looking for a diesel first.....