Jan,
Thanks for all the great suggestions! I didn’t realize there is transport from Vakkotavare but that sounds like a great option. Last time I was up there it was painful to turn east at Singi towards Nikkaluokta, all I really wanted to do was keep heading south to Kaitumjuare but the rest of my party was on a tight schedule. The valley south from Singi looks spectactular.
5kg/25 liters sounds quite light, I don’t depend on the huts as much as I could so last time I think my 40L pack was about 15kg with food and water. I plan to bring my basic bivy gear just in case, sleeping bag, etc. We actually ran into a crazy storm last year coming down Tjäkta pass, barely made it to the hut before it was a 24-hour complete white-out wind and snow storm. We later met a group of guys at Nikkaluokta who got caught in the storm, only 2 km from a hut and had to bivy in place for the night. After that they were pretty shook up , think they had to get emergency transport as a couple guys had some pretty bad exposure. They were older guys who had been skiing up there for 30+ years. Made me feel glad that we had adequate supplies for a bivy.