Have done a couple of long trips in my seven including over 1500 miles in France this year and have looked at your very long list with dismay. Apart from the legal stuff, warning triangle, bulbs, etc; I took, spare thottle cable, didn't need, cable ties, didn't need, BMW bike tool kit plus adjustable spanner (pretty comprehensive) didn't need, spare oil, didn't need. My reasoning was that anything apart from tightening and topping up was down to RAC. I'm definitely not into major rebuilds on side of road. My only concern was I had forgotten spare keys so was very careful about what I did with the set I had.
Brian