JF
I can't beleive some of the negative responses to your very valid questions.. It is a real shame the moderators can't weed out the idiots.. Anyway, I've found the EC120 as a very versatile aircraft although you could run into performance issues if the mission is to go 4 up plus pilot with luggage.
You did mention transfers, the EC120 is ideal with the large baggage compartment which you won't find in any other aircraft in the small turbine catagory.
There are a couple of owners between Victoria and Queensland who have very similar missions to what you are describing and they seem to be very happy with the 120.
One final point is that if your owner wants to land anywhere off airport then the benefits of the Fenestrom are huge from a noise abatement and safety point of view.
PM me if you want more info on operators in your area that may be able to give you more info.
Sling