I'd venture that all the Tamiya canopies are the same, as they use a sprue lettering system, and there're no differences on the real thing (apart from the frameless windscreen fitted to a few).
I can't help with Tamiya Europe, though I recall it said that Tamiya USA and Japan will sell sprues individually. As I mentioned there are a few sellers on eBay who I've found to be very reliable and helpful (anyone with a 99% or above rating, basically).
This one: http://www.ebay.co.u...OkAAOSwA29Y49py
for instance has the canopy frames, so it may be worth messaging the seller to ask if he can get the clear parts for you as well.
That's what I did for my Tomcat, and had it within a month..