Re: Cal 28 Vs. Catalina 27 livaboard
As Adam said, the plywood backing should go.. it's easily done, since it appears to be quite accessible. Aluminum or stainless steel would be the way to go, with polished SS getting the nod for stability and appearance.
The anchor chain is hopelessly rusted, new chain is in order.. if only for the lack of staining new galvanized chain would provide, but the chain itself must be considered suspect and unreliable.
The through hulls are certainly going to be bronze vs brass, and they are at least decent 90 degree ball valves, but there is some evidence of some leakage there.. should be checked into carefully.
Try running some stiff wire/pipecleaner/whatever up the cooling water telltale on the motor, often that passage will plug up - doesn't necessarily mean you're not pumping cooling water, but it should be there as an indication of cooling water pressure.
A usable boat for 3K, not bad.. best of luck in the upcoming season!
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)