Hey Farmer Palmer,
Great tip about the campsite at Sellalandfoss, I wound up staying there the entire next day, just relaxing and enjoying the view. Unfortunatly the owner did turn up so I had to pay him. But I bribed him with a can of Guinness and I got a 500 kronen discount on those two days. I hope you found your Cup-a-soups. Monday was really a bad day with a lot of rain, I was soaked, the other Belgians riding clockwise around Iceland didn't see a drop of rain. I hope your trip stayed dry as well.
Enjoy the time you have left.