Otherwise fleabay and see if you can find another similar board.
Seriously considering getting such a board. It would be great for some longboard cruising. It would be funny listing such a board on the GPS Challenge site.
go to a sail maker and get some stickyback dacron,some 20mm seam tape ,and some sailmakers sail template mylar, you will need to laminate two peices of mylar with the seam tape then stick the dacron on both sides you will need two of them one each side should cost about $30 in material you will need to overlap them by about 5mm
Keef does your idea spring back into place after you've retracted the centreboard a few times?
i used to make a few race boards in the 80's, what you will find is with the laminated mylar and dacron it is very stiff because it isnt very wide and it has incesible memory where as clark rubber will catch on the daggerboard and jam up into the box i never had any problems with the gasket not what i can remember it seems soooooooooooooooooo long ago
go to a sail maker and get some stickyback dacron,some 20mm seam tape ,and some sailmakers sail template mylar, you will need to laminate two peices of mylar with the seam tape then stick the dacron on both sides you will need two of them one each side should cost about $30 in material you will need to overlap them by about 5mm
concur with that and be neat with the contact cement , masking off the areas that don't require it with masking tape.