Ok, I've completed my research and made my purchase. Here are my notes for those that are interested.. YMMV
The winner was Wolverine, $620 + 30 s/h and $45 for mags. Responded to my email request very quickly. In fact we exchanged emails a couple of times while the others never replied at all. Great customer service as usual, this is the third or fourth order that i have placed with this folks although i research cost before each one

What can i say, i'm frugal.
canadaammo $639 incl s/h but since i have to pay provisional tax the cost was around $715. Also i called and was asked to send an email requesting if they had the adjustable sight and mags available.. i did not receive a reply.
wholesale sports $629.99 aprox $20 for s/h. They didn't have it in there main warehouse and it would take a month to get it from thier other warehouse. The guy on the phone didn't sound interested in making a sale. I've never been happy with their service and have tried to make a couple of purchases in the past. Including once when my order sat for a couple of weeks, i called and they said they didn't have the item in stock and weren't sure when they would get it.. Waste of time.
Ellwood Epps Sporting Goods - Sold out.
mdcharlton $612, maybe 30 for shipping the guy on the phone wasn't sure, had mags for $40 each. But wanted $25 as a registration fee.. First time i heard about that. Also i would have had to pay provincial tax. Did not reply to email request.
The local vancouver shops, i called reliable, hunters, and Itilian. The best price was $650 from reliable, but after provencial sales tax i would still save with Wolverine. Not sure what they charged for mags.