Hi, Mike,
That spare spacer that you have (127 155 0050, #34) is used to align the alternator to the w/p and crank pulley.
It was many years ago that I had the alternator out on the 230, so I can't remember exactly where it goes. The picture may help.
The 2 sleeves that go with the 4 rubber mounting bushes (#35) have a smaller OD
The belt 000 997 59 92 is AV10x875La
naj