I went with a 20' Interstate rated at 10k lbs so I could also use it to carry a car, but it is 3500 lbs when empty. I would suggest an enclosed trailer with aluminum frame and chassis for your use so the trailer weighs 2000-2500 lbs empty. When shopping ask for the widest 1/2t towable enclosed trailers to get in the general model range. Don't discount snowmobile trailers as an option - Many are aluminum and have the wheels under the deck giving them more underside clearance. Finding a trailer with a 4' or longer tongue will help with tight turns or when there dips in the road surface. Plan on using a weight distribution hitch regardless of the trailer you choose and adjust it so that the front axle does not lose any weight when hitched. A shorter trailer is easier to move around tight spots, but you will find a longer trailer tracks better behind the truck and is easier to back up than short one.
