If the surface looks good, with no lifting, bubbles, or anything else that would indicate what you already put on has failed, I would say it would be good to go.
You didn't say where the boat was stored, so I'm thinking about what other factors that could have ruined the surface. Stuff like oils,chemicals, bird droppings.
A clean surface is what you need, and I can't see it, so you have to determine that.
Dan
Stored outside. I`m gonna sand the finish down, apply a primer and shoot a urathane topcoat and then clear coat. Sound OK? Original paint has no defects...
WG69
