Is it worth it?

Well after talking the guy down to $125, I went out and got it last night.
It is in fact complete from pan to TB, including exhaust manifolds.
The valve cover was off on one side to confirm the problem. The spring was nowhere to be found and the valve was still in the guide. After fighting to get it into the garage and on the engine stand I pulled the head and found.... a rather bent valve and some good marks on the piston. What a relief.