Hi,  It might be of help to Walter Kehoe's friend if they will contact
Alan Pell direct at http://www.alanpell.com/ or phone on +44 1406 330279
Alan Pell's web site invites contact by email to ask questions or seek
advice but this can only be done via the web site.

Incidentally, he has a DVD for sale, "The secret life of an organ
builder," which is absolutely fascinating.  I bought it a while since
and asked whether another might be in preparation -- alas, not yet!

Best wishes and thanks for providing such an interesting and
informative web site.

Jon Polden
Hornchurch, UK