Build a Dinghy: Part 21

My inwale spacer block and quarter knee installation came out fine. Prior to installing the inwales and mast partner, I painted the interior with a coat of Kirby's 'Red Tint." The paint was boxed by pouring back and forth into larger containers. Brushes are a Purdy sash style for cutting around the blocks and frame etc and a 3" Wooster brand recommended by Kirby. As you can see I had a helper: its her boat and she picked the color. Two more coats and then I'll install the inwales and partner. Sharp-eyed among you might notice that I forgot to mask off where the mast step goes. It gets epoxied in place, so I guess I'll have to "wood" that spot for good adhesion, yes? Exterior is white, the rails, stem, knees, teak plywood transom will be oil finished. I am debating what exact finish to use and so a question: Can I paint over Le Tonk, shop-mixed boat soup or tung oil?