Sanding all over was usually 80 grit for shaping and up to 240 grit for varnished parts.
Two coats of epoxy all over - West System.
The area varnished used the 207 Special Clear Hardener, otherwise used the 206 as supplied in the kit.
Hull & bottom: (1 coat) Epoxy primer > (3 coats) Altex - 2-pack Polyurethane - Oyster White