Ok, here is what he said:
"They offer heliskiing from beginning of April to end of May. The prices (Swedish kronor) are:
1,395/person, one drop-off
1,795/person, two drop-offs
2,195/person, three drop-offs
You can send inquiries to:
fjallbokning@stromma.se
Or call: +46 980-400 80 between 9 am - 5 pm local time.
These prices assume a full helicopter of five people."