http://www.jegs.com/i/SRP/867/142068/10002/-1?parentProductId=753722
Here's something a little cheaper and IMO better than a Ross piston... Ross isn't "bad", but I'd rather have a J&E/SRP product.
I would not use the old battleships anymore. If you want forged pony up for them and get something decent. Compression will depend on the block's deck height and the chamber size your heads end up at along with head gasket choice.