What are the implications of driving an 85 Mercedes 300D with collapsed motor mounts for another month until I have time to repair them?

How do I prove that I have collapsed motor mounts?
--Engine shakes, but its not that severe.
--The condition is such that the alternator pulley is "nicking" the Lower Radiator Hose
--Car has 250,000 miles on it.
--Exhaust system became loose and rattled like crazy a month ago. Replaced all donuts and the mounting washers and bolts where it attaches at the Transmission.