Catching up on posting some older projects - I wanted to add a 2" receiver hitch on the 80. To save a little time and effort, I got a witter tow bar to use as a starting point. Cut away the tube to fit the receiver box section, and left a big chunk of the blade in place while I welded that in, to minimise distortion. The end of the receiver tube sits in some 12mm thick plate I folded to 90 degrees, and milled an opening for the tube to be welded into, so it's pretty well supported. Used it a fair bit over the last 12 months towing a trailer and it works well.