Hello,
I used an epoxy primer and Dupont Emron for the topcoat. For lots of other opinions, click on the search button on the top of the page, type in "hull paint" or something similar, select "all post" an hit submit. You'll see that it's been discussed quite a bit.
Here's what mine looked like when they were ready to paint.
Jack Hoying
Fort Loramie, Ohio
Prindle 18 #1645
http://www.bright.net/~jmhoying/sailing/prindle.htm