I'm confused- - - -do you plan to run the standard pistons in a bore that's .010" oversize, or did you find .010" oversize pistons somewhere? You'll get a horrendous piston slap if you try to run that much skirt clearance on a standard piston.
So far as using file-fit rings to take up taper wear, good luck! A ring that has to expand and contract to stay in contact with a cylinder with more than a .005" taper won't last long. The ones I've seen after a ring job like that were using oil in less than 10,000 miles. I've honed cylinders to straighten .002" or less taper wear, but the absolute max I'll ever attempt is re-ringing a cylinder with .005" taper, and even then , I try to hone the cylinders for minimum taper, no more than .003" after honing. I also knurl the piston skirts to take up any excess skirt clearance. A cold engine with more than .003" of skirt clearance will cluck like a mama hen calling her chicks!
Jerry
