Thanks for the replies. Yes, we only want liability or minimal "comprehensive" (I wouldn't get comprehensive for a $3675 car -- though we'll put more into this boat to make it nice, I doubt we'd get much back).
"basic medical kind of stinks". So what about personal liability? Property damage is one thing, but what if a guest sprains an ankle (or of course worse) on your boat or another because of your supposed negligence (storms were forecast for later that afternoon, poor docking etc.)? These are unlikely but possibly catastrophic liabilities (which is the purpose of insurance).
The boat (Catalina 27, w/ an Atomic 4) is on the hard getting looked-over and fixed up. We expect to have her in the water (Middle River, MD) and sail/motor her to Oak Harbor (Rock Creek, MD) in another week or so.
We have no problem w/ getting the boat thoroughly inspected and in as good condition as possible. But, a formal marine survey (heard of it costing $900), doesn't seem worthwhile. A good marine mechanic is already working on her.