Idea for camp trailer / TC storage platform?

Thanks guys. I have no intentions of hauling the TC around on the trailer, other than in my yard, under 3 or so MPH. so it would basically just be a trailer for towing gear, that I could also store the camper on. So if I needed to move it it would be easy AND so I get the support "platform" under the camper that I've read is important, instead of leaving it hanging on the 4 jacks. Oh, and would make getting the nose of the camper 4" higher than the tail for storing easy too, with a tongue jack! Think I'll start looking for trailer!

Thanks.