Once you get Maiden69's suggestion done, If you use Auto paint method be sure to use Auto Primer and Auto Spray color, then Auto Spray Clear.
Because we don't know exactly what kinda finish (Urethane?) they used on the Original Fernandes Finish, you wanna stick with the same type product the whole way through. IMO, I'd stay away from sanding sealer before you paint and go straight to the Primer, and use glazing putty to fill any imperfections before you spray the color, Then give it lotsa clear coats since that will be the hard protection you need to have.