Well, that is an open end subject, it is all subject to the type of materials used, the quality of the workmanship, plus you get into the "might as well" factor. Complete restores by a shop can set you back a fair amount, DIY can set you back in materials, but mostly time. There are certainly qualified folks here on the site, most of the ones I know of are in FL. Perhaps someone will suggest some from the up-nort area. Good luck! Nothing like seeing someone restore a classic SeaCraft!