For my diesel benz I found truck places to provide fair priced good service.

Trucks have multi-part drive shafts and shops that do trucks are equipped to jig a two piece
shaft for balancing.

The one I use is in Los Angeles.

Same thing for injection pump. Found a truck repair facility that had no problem doing my benz injection pump.

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80 300D 340K Owned 30 yrs
83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day
02 Z71 Suburban 117,000
15 Toyota Prius 2600 miles
00 Harley Sportster 24k
09 Yamaha R6
03 Ninja 250