Thought I would post this.
Using basic hand tools and some good old fashion redneck ingenunity. but hey, it works.

Pack the coupler body with grease. ( I use high temp wheel bearing grease) Assemble the coupler and shoes as specifed in the FSM.
To install the cover and keep a stock OE appearence , here is the best I've found yet.
Using 2 slide bar C-clamps. I happen to have the flat wrench handy but normally I use a 1" x 6" piece of plywood, but either one works.
Just pull the clamp down on the cover snuggly, Yet evenly with the 2 clamps as shown. DO NOT over tighten it. When the seal starts to squeeze out,Stop- you've gone far enough.

Lay the coupler body, ( NOT the clamps btw.) on something solid( I use a bench vice ) And with a flat chisel thats ever so slightly dulled just crimp the clips down one at a time over the small bumps in the coupler body. It's takes a decent hit to bend them but don't over do it. So start with easy hits and work your way up till your sastified with the end result. Each time make sure your chisel point is in the same spot on the clip.