Are you really stuck on the Ranco? There's a guy up here that sells them but he charges a plain silly price for them. There are quite a few people up here that retail Helix and Herpstat, which IMO would be the better route to go

Being from Montreal, I will assume that you are fluent in french (my bad if you are not) are you a member of the French language herp forum up here? (PM me for details on that, if you would like)

Out of curiousity, what do you need the thermostat for?