I know it's last minute, but I can also get more later so it's not the end of the world either way.
As I understand it you have 6.2 SCAT rods with a .927" pin. Stock deck is 9.232 +/- .005 and most likely crooked. Usually I deck the block down to the arbitrary figure of 9.220 and order my pistons off that. However, you can specify any block height you want. If you go with the stock stack height it comes out to 9.215 as most SC's ride down the hole .010-.020".
You have to decide what final deck height you are doing to sit at to order a piston. That is why I go with 9.220 because I know that for any given block I can get a properly square finish at that height.
If you have that info or want to go the same as what I do, I can add your order no problem.