I've never seen the bottom of a 201 but there must be some part of the oil pan exposed to the floor. I'd jack the oil pan with a block of wood between the jack head and oil pan to spread the load then stick some blocks between the engine mounts and the crossmember. In effect, make the engine mounts taller. I dont' know if you have to release the transmission mount to do this or how high you can raise the block before bending or breaking something.

Sixto
95 S420
91 300SE
87 300SDL
83 300SD