Had the same query with my stern drive so used Internationals anitfoul "Trilux" for stern drives, it will withstand 3 months drying out if I need to. Don't use white it shows every mark, black for me next time.
Great news that she is going back in, have you glassed in the fuel tank ?
Love to see Garfish doing community service after a punch up in mid air with someone who upset him,
Pete