Nice work Andrew,
I am following as I have an LS1 project going on and trying to work out the best option.
If you do make these or a kit I would like to know more, have been to the Speedhut website since reading your post and I like their gauges and would probably go for a digital speedo with indicator and hi-beam lights, tacho and quad gauge.
Have to wait and see how my first instrument experiment goes using the VZ Commodore dash though
Hope your progress is eas, good luck
Cheers, Tom