Another option out fo left field.....
http://www.gforcetransmissions.com/tran_gt-5.asp
Broken T5s are almost a badge of honour for the Qld Cobra guys. They really are a fragile trans, and I've seen 2nd, 3rd and 4th gears let go. When my 3rd gear let go, it took the cluster gear with it. I simply rolled on the throttle when it happened. I'm sure you could pick up a cheap broken T5 around the place.
Mike Long is a really good guy to talk to. He owns G Force, and REALLY knows his stuff. I wish I had the $$$ to have bought a new G Force trans a few months back, but I'm now accepting the fact that my car really does need the Glide that's currently in it. The T5 kit apparently sells for under $1,000-US, and I just bet he'd knock 10 or 20% off that for a customer or two "Down Under".