Rob..
There were a couple in Alsask,Sask. radar station when I was there in the sixtys..Try some of the Manitoba radar sites...Beasejour..Gypsumville...maybe even Portage la Prairie would have a couple ..
The Air Force bases had them whereever I was stationed..across Canada..Maybe Moose Jaw or Dana, Sask(50miles ENE of Saskatoon..)
The CE (Construction engineering) section used them for storage and all sorts of uses..
Try these people..They may have a Canadian lead for you..
http://www.ralhomes.com.au/keycomp.html
Some good shots here..
http://www.cornwallcottagegardens.co...ndgrounds.html