Head parts on the way. Found a shop today. Will get the head to the shop tomorrow for disassembly and cleanup.
Drained the oil pan tonight. I only found some pieces of the chain rail, but I have yet to remove the pan. I've removed almost everything on the topside, except for the A/C. I'm trying to remove that without losing my charge. I have a 20lb can of R-12, but I don't want to use any if I don't have to.
BTW:
The engine has never been low on oil that I know of.
It has been VERY hot however, when I had some cooling problems a year or so ago. I've had to replace the radiator 4 years ago. Water pump 3 years ago, the heater core, circulation pump, and some vacuum operated valve last year. Everything on this car leaked. Now I've a vacuum leak inside.

(I get hot air ALL the time)
I'm considering picking up a high milage late model M-class next year. What's the record on that one?