1992 Mercedes Benz 300e replacement parts

My car was broken into, and a mechanic stole my a/c unit inside my car and they also stole the window assembly as well. My car was purchase in japan in 1996. Now I am in Chesapeake Virginia and the Mercedes Benz dealer does not support my car and no replacement parts. My a/c system is different from the cars here. The wiring is also different. I need a schematic of the electrical wiring inside the car and also parts support. I hope you can point me in the right direction. Thank you