Novak Conversions Jeep Wrangler TJ engine mounts

Possible trailer build

That is certainly a much better trailer than those HF pieces of shit. There is a very key feature that needs to be paid attention to. At the back of that slipper spring is a capture for the aft end of the spring.
Most of the folks on that forum strengthen the frames and install Dexter axles with real springs. Personally, I wouldn't haul yard waste with an unmodified one. Maybe not even if modified.
 
Novak Conversions Jeep Wrangler TJ engine mounts