Many operators in the states are afraid to operate them. Lack of avaiable parts and support still tends to be an issue. This is really too bad as I love flying the angry egg. There are certain jobs that can be done none better than with the 500.
I think as a one ship 500 operator it would be tough.
At sea level to a couple of thousand the 500 will grunt. With minimal fuel ( and the thing aboslutly stripped out), I have picked around 1300lbs moving drills ( these are very short moves).
For bang for your buck for anything over a 900-1000 pounds and above 3000' , I would look at a As350 or a 206l4.
RB