The nice woodwork is hopefully all below. Your photos don’t show the deck. Many Cheoy Lees have teak decks which leak, especially when this old, and ruin the interior. With luck the deck isn’t teak and the joinery only needs new varnish. The engine – maybe a diesel, if it’s a later one – may also be difficult to get running. Don’t worry too much about wasp’s nests when it’s so cold.