Being a Novice 3D Printer enthusiast myself my only immediate suggestion is do not use PLA but to use PETG filament. PLA will warp and deform in the cabin heat of the truck in the sunlight. PETG has a higher temp range than the PLA. I printed a bunch of mask ear savers for the medical community thru ought the pandemic out of PLA and have to tell people to not leave them in their cars because they will melt and distort.I'm thinking the switch bank in a Bronco overhead style / sw type would be nice. I know almost nothing about 3D printers but:
1) Could you print a custom insert to mount the switches in, maybe Mav / Ford logo, name the sw functions? I'm going to be looking for a fog light sw location, maybe something exist as an unused knock out. Maybe even have a small accent color trim ring / line (LED lit or printed) to match interior blue / orange.
2) What do you think about getting a custom wiring harness in to that area without pulling the entire dash out?
NOS gauge / switches!?