Rings?

I am slowly getting the parts of my bottom end together. Doing it on the cheap so it takes time to get the deals I want. Anyway, I have a set of new forged pistons (8.5 to 1 advertised), but I don't have any rings for them. I know that file fit rings would be the first choice, but I don't have a ring grinder or access to one.

340, +.030, stock forged crank, getting H-beam rods
going to be a 6-71 setup at about 8lbs of boost, maybe fuel injected.

What would you suggest I pick up for rings?

Jack