The rack is now mounted on the trailer. The rack is composed of the "No Weld Trailer Rack Towers" and "No Weld Rack Cross Bars" from Compact Camping Concepts (compactcampingstore.com). As their website warns, these rack parts do require measuring, marking, drilling and painting of the metal pieces so it's not just a simple bolt on rack like Thule, Frontrunner or similar racks, but I like the fact that it is designed for M416 and similar trailers and I think it looks nicer than what I could fabricate myself. I have a Tepui Ayer two-man tent in the garage that should be mounted to the rack in the next couple of days. I spaced the cross bars 36 inches apart. That's narrow enough for my two-man tent, but far enough apart that I could upgrade to a three-man Tepui tent in the future if I decide this one is not large enough.