[SCadaddle]

Here is my suggestion:

A running and driving car is worth a lot more than just a running car.
A running car is worth more than a non-running car.
A non-running car is worth more than a car missing the engine.
A car that is missing the engine, or a "roller", is worth the sum of the parts.

We discussed this same "broken head stud issue what do I do?" over on the 911 engine rebuilding forum a few months ago. Many of us used the term "Slippery Slope" as in you really won't know how much it's going to cost you to get the engine back in good running condition until you start tearing it apart. The bare minimum of just tearing it down and replacing the lower row of head studs and gaskets to build it back is a false economy. The "Slippery Slope" infers that since you are there, you may as well address other things as they become apparent. If someone pitched a car to me that only had the head studs replaced, I would see no value in that.

Kind of like flying all the way to Paris for a business meeting and hopping right back on the airplane without spending a few days to see the local attractions, knowing what it would cost you to go there in the future.

But alas, there was a fellow in that same discussion that builds 911 engines a part of his profession who claims "The Slippery Slope" is a myth. There is no "Slippery Slope". For a fixed and agreed upon fee, he would completely disassemble your engine, inspect and measure the wear parts, and provide you with a cost, to the dime, of what it will cost to put it back in good running health.

Of course if you can't afford to pay him to put it back together in good running health, you could probably load up and haul away your several boxes of parts that was once your complete engine. You've now spent the money to acquire his services and you now have a roller car with the engine in several boxes. What is that worth?

Perhaps at this point, I would list the car on BaT, with a comfortable reserve and be honest in the description with full disclosure about the head stud issue. See where it goes. I guarantee you PLENTY of these old cars are bought and sold with head stud issues.