I have used both one part, Brightside or Pettit Easypox and a 2 part Awlgrip. I found the Awlgrip to be the nicest paint I have ever applied. I brushed it on and it finished up looking very much like a spray job. You need to go down to gel coat and definately need primer, probably two coats and at least two top coats.
Get the manufacturers directions and follow them carefully and you could end up with a finish that will last for many years.