I saw this on Clist the other day before you posted it;
I have to be honest; the oil pan gasket leak, and issues with it staying running are a REAL killer on a project like this that's like 95% complete.
The engine will probably have to be pulled to drop the pan for the gasket, and lord knows why its having running issues....
Its a GORGEOUS car, but he should REALLY just finish it if he wants to get that kind of money out of it.