I agree with the Dupli-color.
For years I used krylon for small jobs. Then they changed their formula and nozzle, and everything clogged. I went to Rustoleum - now the same deal. Nozzles are ok, but they clog internally within a month or so.
I have had no such problems with Dupli-color. So far, they are as good as gold, and will spray a year later if I bother to shake the can a little.
I have cans of aircraft zinc chromate in rattle cans from the 1990s. They still work fine. I suggest the Dupli-color primer, then wait a day. After top coat, wait a week for the decal step.