You are in New York and asking about west coast service? Crazy! I just moved from Syraucse to the Bay, contact me if you come out.
Not trying to diss, but you can do much better doing some research. LIC is considered the best swapper around but I spend my time split between the Leg forums and the Bay Area forums.
One of our (Leg) members in Maryland (I believe) has a swap from RalliSpec. I just spent 5 minutes searching but can't remember the name.
This may help:
From what I can tell it will cost roughly $10k.
Search this forum starting with "wrx" for more info and then move to the swaps forum and search for "legacy". We are all interested in what you find.