Somebody gave me an old Martin 12-string acoustic guitar. A little research indicates it's a 1968 Martin D12-35, which was top of the line back then. Body has no cracks, neck is tight, finish is original, and there are some dings and chips but nothing major. Probably needs a re-fret. But- it has no strings, nut or bridge pins so it's not playable. I see these being sold for $4000 and up but I don't think somebody would pay that money for a non-playable instrument. I don't want to put a huge amount of time/money in since I just want to flip it (money for basses). In this situation would you A)sell it on eBay as-is for whatever it brings, probably a fraction of its worth, B)put in $50 for strings, nut and bridge pins and then sell it as a working vintage instrument, or C)try to make a deal with a collector/vintage luthier who could bring it back to its top value?