So what the hell is a survivor ?

[L34Pace]

At what point does the survivor become a restoration project? I picked this L65/M38 factory a/c car up recently. Original 63 Champaign paint thats thin and rust breaking through on the quarter wells and lower front fenders. The headliner and vinyl top are toast. Do I leave it alone or start the restoration dance. It does have all the docs down to the original dealer paper plate but isnt all that rare of a car all in all.