You can see where core was taken out and not replaced. What was factory?   By the way, cicadas are attracted to grinders.

Haven't processed all you wrote yet but will and will answer. In the mean time more pics to ponder. This boat has clearly been in a significant collision.  See pics of bow and stringer.  Everyone's thoughts would be appreciated.  Should I continue down the Coosa path or switch to plywood?

RickK, is it pretty normal for there to be lots of resin? Looks like it was just poured in

Good luck on the sale - she's a beauty.

Finally.  Grinded all the old stringer support glass out of stern. There was a piece of wood glassed along either side of keel that is no longer there. Seems like it should be there which is why I plan on glassing some Coosa down. Also appears the keel is not glassed down the center. It's off about halfway towards the bow by about an inch off to starboard. Odd.  Whoever did last job was less of a professional than me which is to say very unprofessional. Pick up my first run of supplies on Monday. Wish me luck. Will be add8ng glass to transom skin, adding Coosa along keel and  generally adding strengthening  hull where I can before I lay up transom.