I re-installed the 3rd thrust bearing on top of the mount as I assume its for no-load swivel of the nose gear during flight. I put the yellow bushing on top and installed the retainer plate.
The two lower bushing mounting plates installed relatively easily by hand, the lower of the top two was a tight fit and I used a c-clamp to install it. I then reamed both assemblies with a 3/16" drill bit to clear out paint and any tolerance issues (and the bolts wouldn't fit if I didn't.)
The stack of washers required by the drawing to space the lower two bushing mounting plates is less than an optimal design for assembly. A bit of a pain to do, and a simple single spacer / standoff would have been better. The drawing shows 4 thick washers and 1 thin one, but this would have left a gap and I don't think that compressing the flange on the motor mount is a good idea. So I added another washer to take up the gap. I used a small screw driver inserted in the stack from below while I inserted the bolt from above.
