General advice for Scandinavian part

Hello everyone,
I am preparing for E1 journey next summer from N to S but heading to Stockholm via Falun. I have my equipment thought out but I am still not sure about the cooking stove. As they wont let me with the pressure bottle into plane. I thought about buying one at Honningsvag but I am not sure if it is possible? Maybe I´ll consider different fuel or send it in advance. I also wonder if there is possibility to buy new gas flasks along the way.
I will go in july and august. Thank you for any info or tips .
John
Czech Republic

Due to COVID I will be starting from Nordkap 25.6. 2022. I´ll have two months to get as far south as possible