I would stay away from this one. If the compressor bracket broke, could the hoses be damaged as well? The a/c repair for this car could get expensive. All '82 US spec 300D's were turbodiesels. The car you are looking at could be a euro model (non turbo). My car gets between 24 and 26 mpg on the highway. If this is too low, look for the legendary 240D with a manual transmission (good luck finding one). It gets about 30 to 33 on the highway. Search the archives, there are lots of posts regarding the 240D vs 300D-t debate. Good luck.
'82 300D Turbo 222k miles