I've got an original AE Transwarp GS rev 1.4 I'm considering selling. I've upgraded it to the following spec:
Original TWGS rev 1.4
Western Design Center W65C816S CPU
ByteBoosters 32KB Cache Board
ByteBoosters High Speed GALs
Scalable Oscillator v2 for TransWarp GS
I get somewhere around 13.5mhz stable on my GS with it - your mileage may vary so be aware. The Scalable Oscillator is a lifesaver when trying to find the maximum speed the card will be stable at. Runs like a champ with the stock power supply in the GS.
Looking for reasonable offers - email me if interested.