[cp4000]

Hi everyone,
Have a 1988 3300 Open and had one of those "kicked in the gut" moments yesterday.  Bought the boat this Spring and have been over just about every inch of the boat so far...Was feeling really good about it until we had a good rain yesterday. I knew I had a small leak from above the galley/dinette, now I know there are two leaks.  The porthole above the galley is leaking from the bottom pretty good.  It doesn't look like the seal is leaking but the porthole frame itself.  What really made me sad was that the bottom set of screw holes are all stripped out.  The top ones are tight and grab but the bottom where it has been leaking, no.  I read that there are some rebuild kits but my big concern is the hull that it is fastened too.  I assume it is not solid fiberglass up there and probably cored.  So the core is probably rotted out and even with a rebuild kit, that ultimately won't fix the issue.  Has anyone out there had a similar experience?  Would greatly appreciate any input and would love to hear some good news right about now.     
Thanks everyone!
cp4000