Neat! I'd have stuck some LPG pistons in my 292 I'm putting together if they still made them (decided to just deck the block and head for a little more compression). Using moly rings and all the other good stuff too, I guess? What cam are you going with?
I think those pushrods still looked useable.
I do have to ask, though; did you buy pistons before you took it apart and checked the bore?
BTW, don't kill your girlfriend or whoever you made hold the camera with the dust cloud from your dirt burnouts.