Welcome mate, have a look in the For Sales. There is a Jap Spec WRX for sale for 2.5k (not currently running but has most parts). Apparently no VIN plates either.. but cannot confirm. Might be ok for a cheap start to a project car but I'm not one to know about that :P

Best speak to S-Technic, Doug has a few WRX Rally Cars now. He can point you in the right direction with great advice.