I have been thinking about getting one of those Harbor Freight flatbed trailers and building a camping trailer that will also haul my TW. I want to ride in some nice areas in West Virginia but I don't want to ride my TW all the way there. All I am looking for is something I can pull into a campground,roll the bike out,inflate the air bed and know that I have a dry,comfortable place to sleep. At this point what I am seeing in my mind is something with a door in the rear and a bench or box along one side that I can push the bike against and secure the bike to. This way the weight of the bike would be centered. When the bike is out the bench converts into a platform for the air bed. I like teardrop campers but I am thinking that a simple rectangular shape would allow me to put small stake sides on the top for firewood or anything else that I don't want in the trailer. My main design criteria would be light weight and minimalist. I was hoping to tow it with a Toyota RAV4. Any feedback would be appreciated. I'm wondering it that Harbor Freight trailer is up to the task and I am debating what material to use but I am thinking1/4" ply with one layer of fiberglass set in epoxy. So any advice would be appreciated. If I do this I can post the progress in case any one else wants to build one.