>>2527191There is good public transport in winter to Kvikkjokk and Abisko.
Not sure about Saltoluokta-Kebnats, here is usually a flixbus in summer.
Nikkaluokta is prebooked bus or taxi only in the winter.
If I could go I would do a one or two week round tour from Kvikkjokk to Saltoluokta and back again if there is no transport available in Saltoluokta. There are lots of beautiful winter spots to explore next to the trail and around the Sarek national park.