Yes, I made mine. I started with a standard carrier which was rated at 500 lbs. Then I made a motorcycle tire cradle using (don't laugh) a wire loom trough. Cut/bent/welded to make the front wheel stop. It really works well too. Anyway, I welded some outriggers on it for tie-down eye bolts. I also had to replace the center receiver bar with thicker gauge material. The rated '500 lbs' didn't do too well with my 350 lb triumph. It had a slight bend to it after just a few uses. Probably from bouncing up/down. It holds one motorcycle and two bicycles along with ramp and gas cans.
ok, so on to the good part.. I was at Eckhart trailer hitches in Thousand Oaks, CA, a couple weeks ago and he had made a nice one, really heavy duty, for under $100. I was tempted to start all over again. Chances are you can have one made at any trailer hitch place the same.
2013 Itasca Sunova 30A
2006 Crownline 250cr
2012 Ram Laramie Longhorn