Get rid of the threaded holes in the side and jut put them in the top. gets you the same result with 1 less setup and operation. unless you were silly and put them on both sides. then you save 2 setups and operations lol.
Profiling the top really isnt a big deal unless you are trying to make it on a manual mill. it goes slower than just facing but its reasonably quick.
Other than the double angle cutter for the inside i could make that right now.