Love Music, one of our local record stores (the one which didn't have Voyage but then did) was selling copies of the '40 years' double cassette for£1. So I bought a couple. Owner said he had 'hundreds' (it's not really the sort of stuff they stock...) so if anyone wants one, that's the place to go.
I have a spare, Chris, if you are interested!
It's a curious mixture of tracks, but for a pound...
George