I also used up a four cans of Plastikote dark green/aqua trunk paint to get a preliminary coating on the primered trunk floor. On the sides, I was careful to cover the same areas, including the original undercoating/sound deadener that the original trunk paint was sprayed over.
I will probably end up using the Eastwood black/aqua stuff unless anyone has a better recomendation of something that comes in a spray can form.