The most likely bushing to be missing is the one on the tranny, not the one inside, so if you cannot jack the car up on stands, you will need to take it somewhere to get the bushing replaced. I seriously doubt you will be able to reach it without raising the car.
On a lift this is a 5 min job, max, so you shouldn't have to pay much. Try a local independent shop that does import cars, ask if they are familiar with Benz, or look in the form for shop locations.
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!