PPL heli-skiing friends hmmmmm sounds like an accident waiting to happen.
What You need: At least 500 turbine hours (MINIMUM), a few hundred mountain hours above 10,000', at least 1,500 to 2,000 hours rotory to be in the running to be at least half safe to bring your friends & you back home in 1 piece.
Our company minimums for the same are 2,000hours rotory PIC, 400 hours mountain above 10,000', 1,000hours turbine & 200 hours on type. And thats just the bare minimums!!!!
Happy landings