Hi Brian
Johnex is still in business under new ownership and name. Here is a link to their sight.
http://www.centralservicesinc.com/johnex/index.html
There is quite a Johnex group in Toronto. I'm sure that they can be of help.
There is a Canadian cobra club at
cobraclubca@yahoogroups.com They can be of some help as well.
Hope this helps.
Paul