Having stood between a Bk117(basically the same cabin size as a 145) and a 902, I was surprised at how small the 117 interior is considering it's higher weight. Old technology I hear some of you say, but then is not the145 just a 117 with an undated nose and avionic pack( a little too simplistic I grant you but close enough for you to get the drift).
As for fitting 12 or 14 blokes in it, you're having a laugh! Not the size most coppers are.
PAN, who's your source, he doesn't feed you accurate enough information, hope you're not paying them.