If I came across it, I would gladly drop $500 or more to take the chance.
You would easily get more than that back by parting out.
Evidently, the owner swapped out components over the course of time.
The brakeset looks like Super Record from the late-seventies.
Hopefully the seller will include the original shifters together with the derailleurs.
That headbadge looks fantastic. A high-quality rechrome and repaint will set you back two grand.