I wouldn't install a girdle and I'd use a mechanical water pump for anything driven on the street. The Trick Flow intake manifold will make more power than the Torker II but is taller. If you have the room and you want the power then use the TF intake.
Biggest problem I see is compression ratio. You need to figure out what your compression ratio will be with those pistons since my guess is that you're not going to like the answer if this is a street engine.
The Sniper is a good choice but if you're going with the Sniper you'll need to sell the MSD stuff and use the money to buy the Holley Hyperspark distributor and matching ignition components.
