Not enough information to make a diagnosis. The cracks do seem suspect. Usual gel coat cracks are caused by too thick gel coat usually on the low spot of the mold
. The deck
crack could fit that scenario, the crack on the transom wouldn't. Definitely something that a surveyor
would need to look at closely. If it is caused by flexing of the transom, it could probably be reinforced from the interior
of the lazaretto which would eliminate any cosmetic problems on the outside. Not fun to glass in a lazaretto, btdt.