Re: how hard is it to redeck a 89 bayliner capri 2.3
I wouldn't put it in the water now, it's likely got expanded foam flotation, any leaks will be hard to trace down while the deck & foam are installed. Unless you're on the fence about rehab'n this boat.
The pix aren't real clear, but this looks like fiberglass w/ a rotted plywood deck:
As my one of my new favorite lunch spots, Firehouse Subs, sandwiches, this is going to be a
Fully involved Resto. Deck, transom & stringers....
You already own it, so I'd pull it apart. Any evidence of water intrusion and hull cracks will probably be fairly obvious after you've torn it apart.