Ok - I confess. I bought one of those cheapo Harbor Freight type trailers 4 seasons ago, not from Harbor Freight but it is the same generic unit. Spent an afternoon putting it together in the driveway. I think it was just under $300.
I had a friend weld up a U-channel from sheet, some plywood for a deck, moved the axle back a few inches for weight distribution. To load I just tilt till the channel hits the ground, rest the neck on the tailgate(with a blanket underneath), once the bike is up/on, I slide the trailer back and set it on the hitch. Can be done solo, more technique than muscles.
I have taken it on a dozen or so trips on the highway about 1-2 hours long with no problems. Well there was that one leaf spring that broke in half, but that was just the secondary leaf...
Took me a while to figure out what that "BING
BING BING " sound was....
I keep a close eye on it during the year in case it decides to shed more parts on the 400 series (highways) and check the tires and bearings often. I rubber mounted the leafspring bolts with shock mount rubbers to cut down on the hillbilly-clack-and-rattle. Now it is silent.
It is also handy for taking the mower for it's weekly trips to cut my parents grass. :roll:
I originally towed the bike behind my tiny Mazda 323 - no problem. Now I pull it behind a Mazda Protege5 with a Hidden Hitch. No problems as it is a really light unit even loaded.