Mounting nutplates for steering cable fairing. The early plans are I have are misleading as well as poorly rendered, so following them may cause damage to the aft structure. Instead, I used K1000-08 nutplates, carefully placed.

Also, spent an hour priming the internals of the cabin ribs and support. Sealed them with clear tape and poured Super-K primer inside, swished around and poured out the excess.