Can't tell you about the casting numbers as the car isn't here. If you had to guess how much would all the accessories be? They do have a motor that comes with some accessories let me list it here. Its $3,500 and this is what it says:

The 330hp 350 crate engine from GM Performance Parts is loaded with additional components to provide a complete engine package and eliminate any quess work. The 330hp 350 includes an aluminum dual plane intake, Holley carburetor, HEI distributor, water pump, harmonic balancer, and a flexplate for automatic transmissions.

Could you give me a guestimate on how much the parts would be that I would need for that engine to? I'm really working you guys with this huh? Well if I get annoying just ignore my posts =)