Short Term Disposable Containers
and best of luck on your adventure.
One resource I have used in the past when I know I will need extra fuel between stations is to scrounge through the rubbish for empty oil jugs. You can put about a liter in each one, and bungee them on somewhere, then transfer to your tank when space permits, and skuish-bungee, or dispose of. Its a short term, one time fix, but I,m a cheap bastard.
What in the wide, wide world of sports is a-goin' on here?