I'm with Mike on this one too, you need to do a little more research. I assume that you'll re-sleave the blcok when you take it apart right? What cams do you have right now, because you should think about a set of custom cams if your going to bump your compression and sleave your block. Also get better rods since the QR rods are like twigs. I'm not saying you have not looked into this, I just think you should look a little closer before you drop $2k-$3k into a project. You also realize that the ECU has not been cracked and therefore you will have to get some kind of standalone unit. Plus at least a few hours a day over a few days on the dyno to tune and find the sweet spots.
All of what you want to do can be done, but the only question you asked was about the pistons. If it were me, I would have more questions than where to get pistons made. And I know a little bit about this stuff....
Also what mods that your running 13s? spray I assume, what shot?