I’m bumping this with more ideas.
After watching Res build his Slide In and then the pop up last month I figured I’d look around the web for something small that I could pull for long road trips. Especially since I may be swapping directions with work from offshore to land.
So I stumbled across this site, namely the ‘Rough Rider’
http://golittleguy.com/ It has more ground clearance and the pintle hitch is gimmicky. They look cheap and easy enough to build so that lead to another search and this site
http://tnttt.com/
Basically you can go to Lowes, find a suitable trailer, measure it & crunch numbers, go inside and buy all the necessary supplies to build it as well as the trailer. Load up the supplies on the trailer and go home to finish.
Simple things like the top railings of a chain link fence, tin flashing for a metal roof, sheet plastic for tub walls that make a shower, roll insulation, etc. Swing by Harbor Freight for a suitable tubing bender and metal brake, too.