Finally getting around to working on this again. Life gets in the way. One side is now done. I ended up just using the prevailing torque nuts without the ribbed washer. On the bolt head side I used a steel washer to sandwich a nylon washer which was greased. This provided the ability to insure that it is the machined bolt shoulder turning in the bushing ID instead of the mating member just pivoting around the bolt shoulder. I also had to expoy the bushings in place so that they wouldn't just spin in their bore. Just playing a game with relative friction to make sure to control motion where I want it and limit it where I don't.

I just started breaking down the other side and doing all the finish work on the holes. Still have to cut down the bushings, sandblast, powdercoat prior to having a whole set. It came out pretty good. It is nice and tight in terms of lateral deflection, but pretty smooth during its motion while opening and closing.