yup lots of info out there.
Guagecraft are very helpful I have been speaking to Bob for a few weeks now, unfortunately he does not do UK models as our gauges have warning lights the yanks don't have.
I originally just wanted to buy some converted gauges off him, there then followed plenty of communication with him, which has now led to doing them myself.
I will be using some of his tricks but also have a few of my own up my sleeve.