I'd rather clean and reuse the original bolts than those inexpensive, zinc ones. I clean the threads carefully - with a die, if necessary - and lap each one in its respective hole with a little dab of anti-seize. If the bolts are even slightly suspect, I do replace them, but with a good-quality, hardened fastener. Ever had to replace the water pump housing? Not much fun. When putting steel fasteners into aluminum, bimetallic corrosion is a real possibility, hence the sparing application of anti-seize lubricant. I like the Lubro Moly copper stuff. I realize nobody asked, but.... Excellent write-up, nonetheless!

Jay

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On the road, currently:
'83 300D (German spec.) 168k mi. - - Wolfgang (tucked snugly away for the winter!)
'87 300D 375k mi. - finally went over to "The Dark Side"
'87 300TD 225k mi.
Cannondale 66cm CAAD5 w/Campy/Jamis Aurora
Hujsak Custom Fixie/Landshark Track Shark Custom/Ahearne Custom 29'er