I painted the cowl and tail yellow after a base coat of white, then decided to paint for the red stripes instead of using the decals. This picture is after about 2 hours of masking which is hard to see because it's yellow Tamiya tape on yellow paint.
Here's the result after spraying the red. Quite a few areas to touch up to do on the cowl but only one on the tail. I will use the decals for the rudder so it will be given a coat of white so the yellow doesn't show through. Testors square bottle enamel was used for both the red and the yellow as well as the white base coat.