After thinking on it for a while, I've decided to sell my GK-1. Here are some pics:
I'm selling the fully built up board, the 2 custom made transformers, the stock potentiometer, and the owner's/construction manual. The board was meticulously built up with Cardas Quad Eutectic solder. Black Gate capacitors and PRP resistors were used in certain positions. The solder joints are all excellent. The sound is dead quiet and absolutely sweet.
The price is $699 plus shipping. I will pay any PayPal fees if that's the method you choose to use.
Thanks for looking,
Steve