Nigel, of course you're right: there may be some swapsies to be done, but experience tells me that there are few Bells with Agusta bits on (the notable exception being the one that kicked all this off.....). Certainly the received wisdom when I was considering machines was to go for Agusta as you can always fit Bell parts to them, but not the other way round.
Not sure where Rescue One has gone, but I'd like to hear from him/her again: I'm genuinely interested as like all these things, different people have different takes on the same story.
As for my machine, it is up for sale, but not because it's an Agusta with Bell bits on it...more that I'm committed to a newer aircraft. So feel free to make me an offer. Air and Ground can have their tailboom back then!!