I'm restoring/rebuilding an old Spirit 500. The firebox has been sandblasted. My question is...are there any special things I need to know or do before I paint? I intend to use either Krylon or Rustoleum black grill spray paint for the outside. Should I use any base coat or primer? I know not to paint the inside of course but should I "season" it with something or even do anything at all before I use it? Never tried a rebuild before so this is all new to me. Thanks for any help or advice you can provide.