I am sorry I missed the question about the paint... I used what I had on hand it is a blue primer. Made by http://www.TheArmyPainter.com It is called "Color Primer Navy Blue" I also paint 28mm model soldiers. I think it will match the blue paper I have.
I have not done much on the Hellcat since I have been home as other things are coming up.
Here is a picture of one of the 'sister' ships. Sea-Land Service (now Horizon Lines) built 3 ships of the same class. I passed this ship during the day and got a snapshot. She is about 3 miles away.
I am a civilian Merchant Marine Officer. What I do on my free time is just like when you are off work at home. The only restiction aboard ship is there is no alcohol. So I build models and read books. When I spray with paint I do that outside. The other paints I use are Vallejo water colors. They come in little eye drop bottles. Put one drop on a pallet and thin with a bit of water.
I hope to finish the Hellcat soon, but now the weather is changing here in Seattle, and I don't know when I will test fly?
Mitch