There are some very interesting RCAF vehicle photos currently listed on eBay :
Orig WW2 RCAF R/P Kodiak Alaska 1943
http://cgi.ebay.ca/Orig-WW2-RCAF-R-P...1%7C240%3A1318
Original WW2 RCAF R/P 1938 Snow Tractor
http://cgi.ebay.ca/Original-WW2-RCAF...1%7C240%3A1318
Original WW2 RCAF R/P 1930 Fordson Tractor
http://cgi.ebay.ca/Original-WW2-RCAF...1%7C240%3A1318
Original WW2 RCAF R/P 1938 McCormick Deering Tractor
http://cgi.ebay.ca/Original-WW2-RCAF...1%7C240%3A1318
Original WW2 RCAF R/P 1934 Ford 2 Ton Dump Truck
http://cgi.ebay.ca/Original-WW2-RCAF...1%7C240%3A1318
Original WW2 RCAF R/P 1937 Ford Coach Car
http://cgi.ebay.ca/Original-WW2-RCAF...1%7C240%3A1318
Orig WW2 RCAF R/P 1937 GMC Panel Delivery Van 1/2 Ton
http://cgi.ebay.ca/Orig-WW2-RCAF-R-P...1%7C240%3A1318
Orig post WW2 RCAF R/P International Van
http://cgi.ebay.ca/Orig-post-WW2-RCA...1%7C240%3A1318
Orig Post WW2 RCAF R/P 1950s Ford Pick Up Truck
http://cgi.ebay.ca/Orig-Post-WW2-RCA...1%7C240%3A1318
Orig Post WW2 RCAF R/P 1950s Ford Dump Truck
http://cgi.ebay.ca/Orig-Post-WW2-RCA...1%7C240%3A1318
Orig Post WW2 RCAF R/P 1950s International Dump Truck
http://cgi.ebay.ca/Orig-Post-WW2-RCA...1%7C240%3A1318
Making the usual disclaimer, I have no connection with the seller. Enjoy.
Brian