Yeah, use the hi-temp black spray paint, make sure to cover everything you don't want painted really well. I'd reccomend taking the
yoke off and painting that seperately, and removing the mirror while painting if possible, and cover the mirror stepper motor in a plastic bag. Also, as Footer said, clean it really, really, really well. Oil and dirt can ruin a paint job in no time flat. Even go so far as to wash your hands well beforehand and/or use gloves so that you don't get oil from your fingers on to the fixture (and so you don't accidentally paint your fingers black).
Oh, and post some pictures of before and after when you're done so we can see how they turn out. Maybe some of the system in action, too.