I am building a Pygmy Boats wherry using System Three epoxy. I plan to paint the outside of the hull because of some serious mistakes made at the stem. They, of course, recommend their primer and paint, which is expensive and is a 2part poly. I have read in the forum of Kirby Paints and Interlux Brightside, but I am not sure of what primer would be best to use with these paints. System Three has some issues with "ordinary" marine paints.