I've flown and operated 206 206L 500 R44 Squirrel & Gazelle in that price bracket.
I would rate them all for different reasons:
R44 is cheap and perfectly adequate,
206 is cheap and more than adequate,
206L is fairly cheap and very comfortable, nice to fly,
500 is lots of fun up front but hell in the back,
squirell is nice to fly, comfortable, but not at all cheap
gazelle is loads of fun to fly but may be dear to run down under.
If you need charter revenue (for tax purposes) 206, 206L os squirrel are best.
I hope this is helpful. PM me if you need more.