Got to get that google running for you.
Start with the retailers that are sponsors of CGN. I was hunting for dies a while back and ended up on some big US sites as dies can ship cross border. For common dies there was no stock and up to a 6 month back order. The dies I wanted were going to come in stock in 4 months, but there were only two left from that order!
I found the dies I needed, paid more than I wanted to, but was happy none the less.
OP if you were more specific you might be better answered with a more precise ###x can be found at ###xx store. But you've asked a pretty broad question - no makes, progressive vs turret vs single stage. Do you have everything else (powder, dies, components, trimming, scales, etc etc)? If you don't I suggest you make a list and start hunting each item down. If you're lucky you'll find two or more items at the same vendor and save a little on shipping. More likely you'll be piecing the list together from multiple vendors and watching canada post tracking anxiously for the next 3 weeks.