Hey Colin!
(First: this post I suppose should belong in the Workshop section, but this subject didn't fit any of the specific topics - maybe there could be an "Anything Else" forum too to discuss things like tail booms, main masts, etc)
I just took a look at the following site:
http://www.quickuk.co.uk/acatalog/r_index.htm
They machine replacement model helicopter parts.
I'm quite impressed! Have a look at their Shuttle replacement parts - I can tell you, when I next have a crash I'll be going to them. In fact, I almost can't wait to have a crash - upgrading to their alloy replacement parts.
And the cool thing too that I only just realised? They're about 10 minutes by car/taxi from me!