How to paint engine bay?

Body color mixed and put in spray cans work great. I did the underneath of my old '69 Dart with rattle cans and it turned out really nice. Did the complete roll cage as well. Looked great with the cage done in 'Charger Red' against the black and aluminum interior.
The "bright" idea the previous owner of my current '69 Dart had was to spray the engine compartment with that rubber coating you can dip your tool handles in. I betcha that's gonna be fun to take off.