Hello Cool Beans,
I have recently been on that boat ( I am actually about 5 slips down) and I thought it was a great value for the asking price
. As my wife says, we could have been sailing by now instead of repairing.
I will only address the balsa core
since I am almost an expert at replacing wet balsa at this point..
Until the balsa turns to mush, the water
seems to migrate slowly ( I have found crisp clean balsa very close to soggy balsa). You can "sound" it out fairly accurately, then cut away one skin, replace the balsa or I used dyvinicel, and put on a new skin.
BTW, that is a GREAT marina !! Excellent staff !!