Crate engine. Am i missing anything?

[abadsvt]

Hi All, First off let me say I am not a motor guy what so ever. I am thinking about buying a crate ls3 motor from speedway (they are running a rebate of $500) . I would need to buy all the accessories (alternator, ps pump, ect) and then a custom wiring harness from speartech or psi. Would there be anything else needed that I am missing? Does speartech or psi include the computer for the ls3? I am trying to figure out a close total for the main parts of the motor before buying. I am thinking about running a t56 magnum but might just use a tr6060 for the trans. Still debating. Thanks for the help.

Josh