(pm received and responded)
Berdan II's are antiques so their value between the US and here should be comparable (import/export is easy)
Current cheapest one on gunbroker is 1100 USD and in a rough shape and it's been there for a while with no takers.
I believe a fair value is around 1k CAD - that's what I've seen them sell for in the US (the exchange rate dropped over the last year - I try to keep that in mind).
The usual considerations for milsurps apply: Bayonet, cleaning rod and sling loops add value. Most are mismatched so matching is more valuable. Tula and Izhevsk are most common. Sestroretsk less so. I've seen some BSA and Colt Berdan II but I think they might have been converted from Berdan I - obviously more rare and valuable. A Colt Berdan I was sold at RIA recently... but I digress...
One you pick it up, please post pictures and be prepared for a journey to reload for it... There's now someone selling bullets on Gunbroker, but not when I was starting out - so it pushed me into casting which I thought I'd never bother with :/