XXL is a tight fit around the arms. The best place to look is probably eBay.
Here's a Gump Worsley goalie cut jersey for $90:
http://cgi.ebay.com/GUMP-WORSLEY-1-M...QQcmdZViewItem
The seller has some other random crested goalie cut RBK practice jerseys (even a Winnipeg Jets one).....maybe shoot him an email to see if he has a Canadiens one that isn't lettered?