Depending on how you classify "Denver Area", give these two a call.

Transmission Parts Wholesalers 3485 S. Zuni 303-789-0046
Transmission Shop 5190 Morrison Rd (Mississippi & Sheridan) 303-922-8040

TPW has been able to provide me with parts for my own tranny rebuild (performance C6). Trans shop does a lot of performance stuff.

See what they can do for you. --Mike G