Have any tips for removing the engine from a junkyard '94 C280?
 

Besides the obvious of disconnecting hoses and wires. The radiator and condensor are gone and the hood will be too. And I'm assuming the engine and tranny gets yanked out at once and I can take them apart on the ground. What do I have to get to from under the car? Driveshaft? Mounts?

You definitely need to unbolt the engine mounts and driveshaft. Good luck doing that at a salvage yard since most cars have the wheels removed and are sitting on the ground. Work safely whatever you do!!