After priming the sub panel and main panel, painted using rustoleum 'Ford Light Gray' from Tractor Supply. (7) coats, waited about 2 hours between coats. I am going for matte finish, so no heavy coats.
While drying between coats, replaced the spacers between the GEA 24 Engine Analyzer for larger spacers to gain additional clearance for the wires originating from the GEA going, well, seemingly everywhere...