I must consider myself lucky, I even found an oem replacement for my broken air pressure gauge. Now if i can fix the leaks, source a doghouse and air ride seat along with some underbus storage i'll be in great shape.
I have the old style dash, and the price was right. https://www.ebay.com/itm/124604721105
My original was functioning, but was falling apart when i got it. i kid you not i had to use zipties and plastic 6-pack can holders to keep things in place. A true eyesore. Now the cluster will be the focal point of the whole project
I have been using the bluefire app as a digital dash, for me it works well so far.
What HP is your C7? I have the 210hp, lots of hours but only 120k on the odometer.
thanks again for the schematics. I cant decide if i should change the cluster wiring to match the bus, or change the bus to match the diagram.