errr yeah sell the car. There's a saying: Benz are good for 5 years tops. For cars made between 1991 and 1997 I think that saying is very true.

If my C220 breaks in any shape or form anywhere even near the engine to the junker it goes.

the resale value of old Mercs are down the drain, regardless of how much they are when new.

I can pick one of those up tomorrow without headgasket issues for 20000 Canadian tomorrow if I wanted - that's about 17000US at best. You are repairing a car that's worth beans in the market anyway and it needs huge repair not some petty wire harness change or something like that.