Remember being plastic you need to hit it with a coat or two of promoter, but I'm sure you know that.
Not sure what parts stores you have there. Here we here O'Reily's Auto Parts. One store locally makes quick dry paint and puts it in a spray can. I gave the guy the Chrysler paint number and he had the book to mix it up. I then got a package of small wide mouth Solo cups and a package of model style paint brushs from the hobby store. Spray a little into the cup and paint. Worked well for me.