Any good machine shop can fly cut your pistons for the proper clearance required for your cam lift, and could balance the piston. For higher compression you can mill the head. Your project is coming along very well, keep up the good work!
Yes and I priced it out, and it just doesn't seem like a good idea to throw money at something that is not what I need. When getting what I need will actually help me out a lot more.
With the pistons I have I am running a .020" thick head gasket, and the heads have already been milled down to a 61cc chamber. I do not want to mill heads more, and there is not a thinner head gasket available. And doing both of those things together could once again result in valves hitting pistons.
So instead I figured I would just go ahead and get new pistons with the correct valve reliefs and much deeper as well. At that point I could choose a piston that would give me enough compression with whatever thickness gasket I choose.