Ok still don't know what year never mind, you have Motec...it can handle AVCS.

Options to consider:
Thought about insurance with a 2.5? EJ257 is clearly stamped on the block. Keyboard whores, before you bother to take the pi$$, insurance is an important issue to many people. That aside 2.5 Short block + CP pistons, your heads, maybe a set of Ivan Tighe Cams, ARP head studs, turbo fuel pump and injectors to match your expectations, Motec M800...yum!

Otherwise the Aus spec 02 Sti bottom end is good value. Not to worry if you don't get it right the first time...theres always the second or third time