Hey pbaldy, Sorry to hear about the damage. I think you might have some luck finding a used RE92 if that is indeed what tire you need. Someone in the club may even have one they would part with.
As far as rims go, check out
www.aaarims.com They sell OEM wheels individually. The only challenge with them is getting a callback, but aside from that its a good outlet.
Also, you might try
www.wheelspecialists.com. They are in Tempe, AZ, and I bought a set of stock WRX wheels from them for a good deal. Ask them if they can part with one take off, it shouldn't be a problem. I would call them on the phone and ask them that though.
later, and good luck