It's also interesting to note that, for the CMC Manual, the lengths and sizes of fasteners (nuts and bolts) seem to be more of an off-handed suggestion......Sometimes they fit right, quite often they do not.
Still, if you're heading out to the local ACE Hardware store or Fastenal dealer, the list will give you a good start on what you'll need. Buy in bulk in boxes for a MUCH cheaper overall price. Do that and you may save $50 bucks or more across the car, just on fasteners.
You might also think of buying only Metric fasteners, too, as this would be in keeping with the original VW as well as the 356 you're trying to replicate. Couldn't hurt....