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Superaquarama,
It seems that Dell Quay Dory is different from a whaler, especially if the foam can be dissolved by gas. The foam used in a whaler is resistant in solvents, including gas and acetone.

Jack12,
The wood in the hull was in good shape. I removed whats there, although i probably could have left it. The wood is placed on top of a shear brace and the edges are glassed over so only the top against the fiberglass is exposed. Once i get the foam ground out, i will measure for new boards and consider my options for adding them. The challenge is, adding them on the angle to match the floor.