Got a little more done at lunch. Enough that I can now move on to the front and worry about details later.
Trimmed down the FFRC extensions and used a body clip. They work great now.
Some notches on the baja bottom plate and cut the sides off to fit inside the TCS plates. This was a bit of a pain......
Set in place
Should be a nice strong and smooth bottom. I think I'll be able to use a stock baja skid too.