For reasons best known to itself, the list doesn’t always seem to send me 
everything, thus I missed Don’s initial query. So thanks, Richard.

No plans for a reboot of my site at present, but the Wayback Machine can
step in and at least provide the gist on the Lewin. Including the manual,
somewhat to my surprise. Hopefully this link will work for others:

https://web.archive.org/web/20130817073829/http://www.cornishworkshop.c
o.uk/lewinplane.html">https://web.archive.org/web/20130817073829/http://www.corn
ishworkshop.co.uk/lewinplane.html

That’s a solution taken right out of the Bugbear book of internet wisdom, if
I recall correctly. :)

Cheers, Alf
Still in Cornwall, but can only guess the workshop is still there somewhere, 
under the cobwebs.