I ended up building one using my dads old trailer. I used a wood frame and it seems to be built pretty stout. I know this because I lifted it off the trailer to have the frame mod'd and I stupidly dropped it from about 2 foot height with no damage and nothing moved structurally. Couldn't believe it.
I kept the same leaf spring setup but replaced them and bought a spare. I took it on several test trips, the first one unloaded, the next one with everything but another anticipated 350lbs of gear. Both trips it works amazing. The loaded trip had me going up a nasty hill, then a horrible rock stepped down hill. The only damage was a bent license plate.
Leaf spring ride looked ok to me, and I took the trails that werent Forest service graded in the least. It was pretty nasty.
Not thrilled with a wood structure for longevity but it only has to last for two years or so. Plus if I damage it I go to home depot for repairs.
The setup has brakes, it's insulated, no windows but a rear ramp for the dirt bike and a large side door to quickly have access. I bought a bunch of L brackets from rotopax and mounted them on the outside trailer frame. I have 18g gas capacity and 4 gallons of water.
I'm on the midst of fine tuning it with small local campouts. I need to affix more out side bins for storage yet and test my awning setup. I order a brake controller for the jeep and that pretty much is it.
I tried to load pictures but it says the file is too big or some such message.
I want to thank those for the advice cause their were some really good options given. Not so sure I did the right thing building my own. It took a long time to do and when you consider the time is money thing buying one is likely a better deal. Still it's kind of cool having a one of a kind deal. Plus in 3 years the wife retires and wants to travel with me in something a little more comfortable, so another trailer is in my future and here we go again. lol
