Pat Gerard,
I live in Australia, and have obtained several very high detail Bell 47G models from a company in Massachusetts USA, over the net.
www.helicoptersonly.com
There is a good catalogue with adequate photographs of your intended purchases for you to look over on the website.
They sell a 47G Police helicopter with a Franklin engine, in blue and white, where you can easily remove the Police placards on the sides, and a Bell 47D with Franklin engine in Mash colours. The interior and exterior detail is stunning.
Lots of other diecast and wooden models of other helicopters, plus a couple of very high quality resin Robbies.
Cheers,
B206B-III