Alvis Leonides
I know of an Alvis Leonides, which was available in a powder coater's workshop in Norfolk. When I asked at the time, 2 or 3 years ago, I was told it would be free to the collector. There's only 1 snag; one would have to demolish and rebuild a wall, part of the industrial unit, to get it out... the building is quite substantial, and there's no other way for it to escape, except perhaps through the roof.
I dunno if it's still there, but it was (visually) in good nick and mounted on an engine stand. PM me if you're seriously interested and especially if you plan to get it running, or better, airworthy!
WW