Well, get to work man!
Maybe my 205 will break off of the NV4500 rear cover by the time you get yours together that way you can confirm a brace is needed
The rear u-joint working angle is almost too flat. The handy dandy phone app angle finder says there is a 2.6 degree working angle at the rear joint. I'm not using any shims...just the ORD flip kit and a lot of weight in the bed