There's easier ways of doing it though.
The toolkit on my bike includes a tyre plugging kit, and CO2 canisters, so this lot isn't necessary: Won't get you far if you have a bad punture on the way to the ferry home that even with loads of plugs and tyre weld in it still needs a couple of pump ups to get to the port.
Electric air pump
Dynaplug
Pressure gauge
Tyre weld
Again, there's a version of this under my seat:
Gerber multi tool with torx bits(much better than leatherman)
Also under the seat are Zip ties
I've fitted a Side stand puck
I've never needed Duck tape for repairs to kit (see below)
small medi kit - I've got some plasters somewhere Won't stop your face from swelling up after a fascial bee sting, lucky I carry antihistamine
Large black bin liner - why? Leaky luggage or holding over the top of the bloke fixing a bad puncture in monsoon conditions.
1" wide webbing strap with buckle - why? snapped luggage strap, which also caused the bag to leak (see above)
water - I wear a Camelbak if it's hot. Not in the south of Spain you don't.
a couple of flap jacks - I'm never more than about half an hour away from food in the UK. In France, I make sure there's something also in the backpack to snack on. One of our regulars has crohns disease, he got caught out once through an unexpected delay on a sunday rural in france and was grateful for them.
My point is, you don't need loads of luggage to carry all this stuff, which I'm sure is why some people like to have panniers fitted all the time. Plan properly, and most of this can go under the seat, or in a small tail bag, not effecting the weight/ handling of the bike.
I don't carry loads of stuff, it all fits in a tank bag with rain gloves, tissues etc. and it's great for the passport or toll tickets you want to keep to hand.
..Nothing worse than walking round with the mrs trying to find either smelling of shite.
