Funny you ask about this now.
@SGBARRACUDA (Roy) just listed these for sale.
[FOR SALE] - 318 .040 Seal Power 285 NCP pistons,rods, crank
Although they aren't the tallest compression height, they are close and really high quality. Plus, I know Roy personally. He's a friend and a very honest guy. That's a great deal for what he has. Of course, you'd have to bore your block if it's standard, but you're wanting pistons so...... and remember, an over bore does add a little bit of compression. Not much, but a little. That plus all the blueprinting could get you into decent territory if you decide to go that route.