strange I don't usually read this section but I'm doing it right now and Marc above did a hell of a job on his. I used his pics too and this website:
http://67.122.16.97/carterman/4runner/mods/locker/Grinding it wasn't as bad as I thought but I had to clearance one more area than the websites I saw indicated. I used 2 carbide bits and an angle head die grinder. My weld buildup isn't all that pretty but it's flat and should seal fine. I used transfer punches to center punch the holes for the studs and thats as far as I am currently. The housing is at my friend's shop so I can't do much to it during the weekdays.
I still haven't drilled my studs or countersunk the bolts on the elocker motor but I picked up this angle drill guide from harbor freight to (hopefully) help keep my drilling straight.