Hey Windsor
First, I would try Canadian Warplane Heritage, they have to have the info they're flying one.
Second, The Bomber Command Museum of Canada in Nanton Alberta...great people and have an amazing archives.Talk to David Birell (no promise on the spelling)
Their Lancaster should be running engine number 4 anytime now!
Third, I would contact the Ventura Memorial Flight Association...Tony specifically.
Tony and the guys seem to have access to seemingly impossible manuals and I know they have the York ones and I believe York and Lanc are the same.
Fourth, Contact me! We have a complete Lancaster tail wheel assembly and if it would help you out I could talk to the Board about giving it to you. No promises but possible.
Tom Hinderks
Executive Director
Alberta Aviation Museum Association
Edmonton, Alberta
direct e-mail to me
eahs.execdirector@shawbiz.ca