This is too wierd.
Two submarine ET's, who've both lived in Silverdale, who both own old Coronado sailboats. Only difference is mine's a '69 25 footer.
Sailingdog has a boat buyer's checklist around here somewhere. Although you've already pulled the trigger, still use his checklist to find any glaring problems with the boat.
See if you can find a surveyor or someone who will lend you a moisture meter to check for waterlogged spots on the deck that might need re-coring. The good news is, the hull should NOT be cored, it'll be solid GRP, just like a boomer's sonar dome.
Next critical items to check are the engine (as mentioned), seacocks and thru-hulls, shaft log and packing, cutlass bearing, the rudder bearing, steering system (cables or whatever you have), electrical systems, standing rigging and chainplates, then your running rigging, check the keelbolts in the bilge, check the keel mating surface to the hull for any separation...
C'mon man, you're a bubblehead. You know how ships are built. Keep the water outside, and prioritize from there.
Good to see you man.