I think you're overly nervous. We go up to 70kts with the longline and it looks more exciting from the ground when you see us go into a turn with the bucket. That was nice flying the way he brought in his "load" right into the trailer, they do this a lot in the swiss alps (they also fly out a lot of dead horses and cows out of the mountains).
It's kind of the same work I do. I have been flying the bucket on a 50ft and sometimes 100ft line for the last 4 weeks here in Arkansas.
As for the type, it's an AS350B3, the bigger brother of the B2 I am flying but the same airframe, just bigger engine (Turbomeca by the way, not Allison). I can't remember the exact horsepower but it's almost 1000hp (I think 890 or so, but I am sure somebody will find out the correct number, fact is I never look at the HP, only at what it can lift at a certain altitdue....)
I used to fly the B3 and LOVE it! It's the best light single engine helicopter in my mind (in my little world where I am god and everybody loves me) and it flies circles around it's competitor the Bell 407 out here at fires....
Here is a picture of me lifting a 1000lbs bridge part to 10,000ft in Elko, Nevada with a B3 in 2003.
(it's a pretty awesome machine...but I am repeating myself)