Gene makes a really good point.
Also, you never said what they are asking for the boat, that certainly comes into play.
One thing about hidden electrolysis damage. I had two boats that lost oil-pans from this, and THAT is a messy and potentially $$$$$$ problem if you find out about it the wrong way! (Oils spills from bilge
pumps are a BAD thing!!

)
I'm leaning more on the run-away side as this conversation goes on......
Remember you have to love the boat you buy, but you don't have to buy the boat you love .......................
