I know you said early on that the stringers have been replaced, but if you bought through an online auction, I'd still question their integrity... How long ago were they replaced, and how good of a job was done? I'd suggest having a marine surveyor go over it before putting too much investment in the rest of the boat. I'd hate to see you put $10K or better into other stuff only to find out she's about to split in half over one good wave...