Is 59000 a little late for the original Model 70 purchase? Not that it is a big deal, however. That looks like a nice pre-war rifle to start with. To answer a question by Stuvwxyz, the Unertl mounts would use the existing holes in the receiver and the other set would be on the barrel.
Winpoor, Bartlein for the barrel? Frank Green just built a similar rifle so I know they have the right specs.
