You might be better off with a Schweizer or a Bell 47.
Martini for Whirligig on the '47 mention.
You say that you want to FLY a PISTON. forget the schweizer it's almost got correlation.
Find and old '47 with an equally old fair dinkum '47 driver and ask him to show how to fly the throttle box on his '47. Nothing else counts when it comes to learning pistons.
I mean fair dinkum, all of the (R?) models have elctronic correlation governer gizmos that mean you might as well be flying a turbine.