should i hold out for a early 360 for my stroker?

I agree with you statement, but.................

But unless your planning on a full custom made piston, you are not going to find a .010, or .020 piston for stroker.

When my .060" 340 block cracked, it actually broke a piece out of it. there couldn't have been .020 of material in there.

I'm sure that if i was to grind a hole in the other side of the cylinder wall i would have found much much more material. aka Core shift.
and it was a 68 block so there wasn't and excuse of tooling wearing out or any thing like that.