Hey Morgan.
If. There is little apparent danger of causing major damage (I.e. tearing the hull or deck)
I'd throw some 4200 (or even 5200, as it does come off with Marine Debond or toluene) into the gap to keep the interior dry and free of mold/rot. Then some time when your not sailing and having fun, fix it properly somewhere that has cheaper materials.
Like I think someone previously mentioned I once had to use a series of blocks and a couple extra lines to trim my genoa when my jib traveler fixing bolts started popping off and could no longer be trusted . It was a bit of a pain in the ass but worked just fine.
The real repair would involve sandwiching some fab mat in the now bolt free h/d joint, then wrapping the joint alternating chopped strand mat and light cloth. Then replace the bolts.
Yada Yada
From what it sounds like it's more of an annoying leak than a real safety concern. Though when I did that crossing I got my ass handed to me because my client didn't want me to wait for a good weather window. But if you wait it can be just fine.
Finish out your season and good luck.
Have fun!
Darrin.
Oh? Is there something different about the southern cross? The chainplates are fastened either to tabs glasses to the hull, or directly to it, correct?
Interesting. My friend's sc28 has the plates fixed to the hull and a cast bronze stemhead. He could've done that afterwards. That's what I did.
Anyhoo.
Hope it works out.