Still don't know why there are mixed reviews on the HF trailer. I haven't heard a single story of one coming apart or losing a wheel. It's all a bunch of paranoid people. The nuts are nylon locking, and you could put Locktite on there too if you're very paranoid. Of course, the wheel bearings need to be repacked with good grease, but that's no big deal.
It will take you an eternity to assemble; I probably put 8 hours just into bolting it together and repacking the bearings, but I bought the 4'x8'. They make a 4'x4' that might be large enough for you, especially if you put a box on the tongue.
You can pick up the 4'x8' for about $200 on sale, and the folding one takes up so little space in the garage.