Heads up guys for some answers to the Gazelle mystery! Firstly - the differences between mil and civ. The mil puts lots of kit in (armoured seats etc) which meant poor old Gazelle could not hack it. The FCU was altered as stated earlier by somebody else (sorry cant remember who) to increase the engine output from (I think) 600 to 750 hp. The 342 version has even more. In addition there was beefing up of the gearbox an rotorhead to match, and the fenestron is different. The mil also arbitrarily upped the MAUW from 1800 to 1900kg. The CAA said this is no longer a 341, thank you, not certified for civvy life.
The ex-mil machines coming on the market are resticted to permit to fly. Restrictions are : no more than 4 people on board, ALL OF WHOM MUST BE REQUIRED FOR THE FLIGHT, no flying at night, no flying over water, no flying over built-up areas.
In other words, unless things change, a waste of money. Buy yourself a nice R22, and a yacht with the change.