It is clear that the starter failure is caused by the neutral safety switch disabling the starter. It is not difficult to disconnect the cable that operates the neutral safety switch and manually place it in a position that will enable the starter. However, once you do that, you have no way to select a gear. It is likely that the shift linkage is not currently in neutral or park or the starter would run. That means as soon as you start the engine, the car will want to start rolling either forward or backward. It is possible with the aid of an assistant to slide under the car (if you are slim) while your assistant is tightly (!) holding the brake and manually place the transmission in position 4 ("drive"). That would allow you to drive the car to a shop for attention. (I actually did this on our 280SEL 4.5 to get it home once.) However, I can't recommend it for the faint of heart. The bushing repair needs to be carried out entirely from below the car and while possible, would be most difficult without elevating it at least a bit. (Do NOT consider sliding under the car with the car's service jack holding up the car - a very dangerous and bad idea!) By the way, the bushings are 112 268 01 50, MB USA list is $3.50 each, my price is $2.58.