Anyway, I know what I'm going to build, but my question is with the bit. I can buy "flat bottom" or planing bits online, but nothing local and I really wanted to do this over this weekend. Woodcraft (we have a store here) has a 1 1/4" mortising bit:
Would this not produce a pretty flat surface in this scenario? I know I have to do some sanding to finish it, I just am trying to minimize it.