I had the exact same Biesemeyer, rotten stringers, rotten floor, rotten transom, rotten rotten rotten, so I ended up cutting it up quite a bit to get it's parts, Biesemeyer's are exceptionally thick hulls, you can literaly have a 260 pound guy smack it extremely hard with a sledge hammer and it won't do a flockin' thing to the hull

The bottom near the pump is allmost an inch thick!

BTW, it's not the only hull I've seen di-sected and the Biesemeyer was definately the thickest I've seen so far.