I’ve finally done it! The players are now ready for painting. Acrylic would have probably been fine but I used white enamel primer from a spray can. I may have to do one more layer but it will be a light one.
I’ve learned one lesson and that is when they say “spray in a well ventilated area.” they mean spray in a well ventilated area, not just open a window.
I plan on painting next week but I’ll see, I may start this week if I have some time.