Good news. Installing the DEFi gauges in the center dash is possible without removing the entire dash.
They will be installed today with a lot of glue and with the prewiring done
later today. Next is the A-pillar gauge install with the sensors being installed this week.
So far it's going to be Oil pressure/Temp, Water Temp, EGT, Vacuum, Air/Fuel Ratio, and Fuel Pressure.