Yep, you only need to drill and tap two holes, using the existing for two screws.
Works OK. Easier to do, IMO.
I agree with the principle your smith bud laid out. He's right.
I didn't have the right equipment to tackle the steel base, drilling the aluminum receiver was the easiest.
DF
One thing is for sure , if the OP pays a machinidt or gunsmith to even drill two holes -it's gojng to be at least $50+ for the work..
Another bit of advice my old gunsmith freind tought me is never make or modify a part that you can not easily or cheaply buy an alyernative vetsion of off the shelf.
And that was coming from a fellow who was a master machinist and loved to build Classic custom rifles..:)
