Ive got a 9'6" Larson tender that I have been patching up for about the last month or so. Got it from a fella whose yard it had been sitting in for close to a decade. I traded a bottle of slightly used rum for the piece. It was stored outside, upside down. The skeg had begun to rot, and so had the top of the transom.
I chiseled out the old wood in the skeg.
cleaned it, filled it with expanding foam (Not a choice I would repeat)
glassed the bottom. (X3)
cut out old, rotten top of transom, beveled old and new treated wood.
bondo filled it, Glassed it, (X2, patches..)
painted it. (X1.5 spray cans rustoleum)
Shes a heavy one, so I found these little wheels and got 1' of free 1/2" piping from a plumber friend (thanks joe!). Bolted 6" pipes vertically in the corners of the transom to slip the wheels into, they happened to fit perfectly!
Im into the project about $100. Evercoat epoxy resin, hardener and cloth being the most costly.
...Ill let you all know when she sinks.