Electrical issues are nothing to worry about, very little to fail mid-gig.
As Discreet says - biggest issue (if at all) is theft. Even the £11k Fodera is replaceable with an identical model but a dream vintage instrument will be unique.
Personally, I'd be careful not to be blinded by the whole 'YOB' route. It's a nice romantic sentiment, but you want a great instrument, and the best one out there might not be made the exact year you were born.