Peter,
Are you aware of Ron Quirk's website?
http://www.rquirk.com/med/med.htm
He has an interest in RCAF involvement in WW2, and has looked into the RAF Liberator Squadrons in the Middle East and Burma with RCAF personnel. The website has included the Form 540/541s for 159 and 160 Squadrons, and some squadron records. They're not complete as yet, and are more in depth for 1943 than 1942, but he does update whenever he has nmore data.
Regards,
...geoff