Purchased cobalt drill bits (3/16; 11/64; 5/16) and started to drill. I used my old corded Makita drill and it worked great. Went through lots of Majic Tap oil too. This was not too difficult but did take patience. I drilled these by myself and keeping an eye on the direction of the drill was not difficult. Total drill time as around 2 hours....the other 2 hours was buys drill bits!
I reviewed the SB# 8 about replacing the bolts with NAS. I will do this later as I'm guessing I'll be removing the legs again at some point for some reason!