You can find the CD on e-Bay for $20 or less. I personally do not endorse these versions. There are also lots of paper copies of the engine and chassis manuals on ebay and at places like books4cars.com and tmcpubl.com. The Haynes manual for the 123 would work as the cars are really very similar mechanically.

The alternator bolt is common to many models and engines and should be easy to find.

Good luck.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe