i just re read this entire thread because i cant sleep, thinking about my car, clint what wiring harness did you go with, and would you build a dash to sell or send the drawings to me so i can copy?
I've had nights like that! I used an EZ 21 circuit harness. It was pretty straightforward. Probably wouldn't be able to make another insert without having another dash. I could send you the dimensions I used for the gauge spacing but I don't have an exact drawing of the insert itself with dimensions. I essentially just made that to fit the car's dash opening that I cut with the gauges spaced enough and just filled the rest of the dash that the insert didn't fill.