Found a couple of issues today. Looks like the barrel will need RPK accessories if I follow the VEPR II as a guide. THe chamber area extends farther than the M70. Here is a pic of my bolt opened up for the .243 shell, and a Bulgy RPK trunion loaned to me by stickerman, opened up to accept the Galil mag. I also moded the bolt to have a spring loaded firing pin.