Been a few examples here over the years, Acetronics did as I remember a tractor dash, SlotH did a superb GLCD snowmobile dash, but his links are all dead now, but skimask posted some code he whipped up and that code is in a thread linked to SlotH s dash link, some members here might still have that code "in Swedish" as it was written. looks like you just need to read a bunch of thermistors and thermocouples. You would have liked SlotH s GLCD
it was very cool.