I was given a 1984 300 cd with 105k on her now . Engine is fine, decent compression and no leaks. I brought her to local mechanic for some inspection related fixes and she is running well despite turbo not kicking in much at all.

My quandary is to fix her over time with a limited budget. I live on an island so the car rarely goes over 45 mph. Had her on Mass T-Pike for first time last week; Cruise control intermittent, shifting is clunky esp. under load, heater (it was colder than a ***** kitty ) going in and out, door locks work sometimes. I realize this is vacuum related and haven't started to test where the leaks are just yet. The reason I mention is I can see a number of splices from previous owner's dad doing makeshift vacuum repairs, and the rubber seals are cracked with rain getting in passenger side. I'd like to change all the lines at one time, then change the seals, and drive away knowing this aspect of the car is taken care of, at least for the time being.

Questions: what is a realistic price for labor for replacing all the lines and, separately, replacing the window seals? Also, assuming a complete replacement, what is a realistic price for buying the parts necessary? Finally, does anyone know of reputable mechanic on or near cape cod who could do this work?

I'm new to mercedes diesels so any info given is much appreciated. Thanks.