I'm not sure how far you'll be venturing, but Bounty Hunter Toys in Hamilton is supposed to have a selection of vintage stuff, though I've never been there personally. It could be an option to try.
https://www.facebook.com/bhtoys
http://www.bountyhuntertoys.com
Just a thought, you could try asking on Snowtroopers.ca, a Canadian SW site. It focuses mostly on modern stuff, but someone there may be able to give you some better ideas.
http://www.snowtroopers.ca/forum/index.php?action=forum