lots of sanding, seem filling , more sanding and a good coat of heavy primer (most of which will be sanded off) calked the seams with PC-11 epoxy paste (materials list on the real boat listed oil putty 25lbs, wood-filler 20lbs plus almost 200lbs of white lead) gave the inside planks a good coat white epoxy resin with fiberglass fibers, tinted to match the lead color in the specs.. Slim avoided the work so not to become to attached to the project,,,