Nice options there, Brad. Just before I put the drill on this stand I seriously considered a Mafell mortiser. Then the fund thing settled in and I put together this 1/2"x1/8" angle iron frame and mounted my drill to it in an attempt to keep up with the rest of the industry. It seems ok, and I get to continue with a traditional form of cleaning out mortises.
https://www.youtube.com/watch?v=17h_be9zjNo