Tonight I installed the two fluid fittings on the oil cooler, and the two rubber seals which will sit between the oil cooler and the air inlet.
The fluid fittings were easy enough. Vans published a video of this procedure, highlighting the need to use two wrenches to avoid torquing (and cracking) the oil cooler. The cooler is made of fairly soft aluminum, and cannot handle the torque needed to seat the fluid fittings. There have been cases of oil coolers failing in flight, and even a recall on a batch of coolers (mine is not affected).
I followed the video, measured the clocking angle, and installed the two fittings.
Then I proceeded to apply silicone adhesive to the sides of the top of the cooler, and followed the instructions to glue down the two seals.
I also spent time filling in the remaining gaps on the inlet where I missed a spot or two when applying RTV last night.