Chris Knight doesn't appear to be a HCCUK member.
The engineering around the elevator does not seem to be "adequate" for a WIG
ie a "plane" !? Once you start throwing "working" engines away (to which I agree!!!!)
you can end up with a load of stuff, to NOT use- so why would you buy stuff to throw away / sell on
then buy other stuff to replace it, then do the joining up engineering etc-
There remains so little that you perhaps were better off buying a working craft and making it work better??
He looks like a really nice chap and wish him well.