Thanks Lee! I actually thought the seals might be OK since they weren't rock hard yet but just checked and they really don't fit the reservoirs properly - as if they have swollen a bit. At least nice having VW replacements out there vice having to call the local Ferrari dealership or something
As for the extension on the banjo bolt, it plays some role in positioning the 'shuttle' section of the m/c assembly. The photo shows parts from a 246 Dino, which must use a very similar m/c. As a wild guess, the rotational position of that shuttle seems irrelevant, but axial positioning (or restraint) COULD be if there was a front or rear circuit failure. I DO know that the 'pin' is a common Bonaldi feature....even on late Panteras (which don't use banjos) the function is taken by a separate screw that is 'hidden' under one of the reservoir plugs.
So imo nice to have a pin of some sort in there if your shuttle has the slot!!