Brian56
The paint I used was semi-gloss in a spray can from the local paint and body supply outlet.
I did my emblems, locking gas cap, after-market step plates, etc. by rough masking the areas I didn't want painted, spray painting, and then using thinner on multiple folded paper toweling (that way you have an absorbent, pseudo-flexible surface that won't bend down into the painted areas) over the raised areas after the paint had set but was not totally dry.
That way you have a nice smooth blended edge that doesn't look masked. The hardest part was the hood ornament. That one was a PIA.
I did my Offenhauser cast aluminum valve covers the same way after painting them with a brush--POR 15 engine paint.
Just take your time.