I found where someone posted the page from the plans showing the bolt arrangement and that aligns with what I'm seeing. The B&B option and the other stainless bracket option look like they'd require some major surgery so I'll stick with just bolts for now. I like the eye nut/bolt idea, I'll have to order some.
Rudder & Dagger Board are there and in good shape although the dagger board it a very snug fit in the trunk.
Interestingly, the boat also came with 4 inflatable bladders that slot into channels just under the gunwales. Perhaps for extra flotation. Seems like they'd add drag through the water as well but maybe they sit high enough to stay dry. Will have to experiment.