To be honest, I just went down to U-Haul and picked one up. Can't remember the brand -- took the sticker off right away -- but it's a standard, round tube hitch. Installation is fairly easy, three bolts a side. Definitely helps to have a second set of hands, because otherwise it can be hard to line things up when putting in the bolts.
Wiring, I just used a
Reese trailer connection kit from Canadian Tire. Unplug the harness from the tail lights, then plug them into a splitter that leads to a 4-pin trailer light harness. No wire splicing or anything necessary.
All in all it was around $160 and a couple leisurely hours for the install.