I used Irunguns last summer to import a No1 Mk V
Process is very easy and it's all done over the internet.
First you need to contact the seller and the auction site if they agree the bids and transaction.
Explain them about IRG and give them the link to the site so they can see for themselfs.
Then you have to also agree on a payment method... i used an international postal money order.
But.... the sellers bank and postal office both refused it... go figure...cant argue with them from here.
So i finally paid with (FRAUD ALERT) (i know not the best choice but i had my back at the wall)
Once the payment as been made go on IRG website and fill out the form and pay the import fees ($200) plus $25 (to ship the rifle from IRG US to IRG Canada)
They will send you a receipt and a copy of their FFL in a PDF form
A FFL is basically their version of our PAL...a gun permit.
You then send those to the seller.
With those the seller is ready to ship to IRG in Arizona.
Ask that he pack it very well and ship with a tracking number.
IRG can charge extra if the package is crap.
The tracking is YOUR responsibility, not IRG, It's an inssurance for yourself, to make sure you know when it arrives, etc.
Once IRG USA as the rifle they will ask you to pay the custom fees, Canadian Taxes and the delivery in Canada.
Now you wait... they only ship to Canada once a month and your rifle needs to get to them before the 15th of the month.
Once in Canada they will ship it to you and send you a tracking number.
This all looks complicated but in reality it's all VERY easy. In all it took a little Under 2 months for the whole process.
I dont know about Prophet or the others so i cant comment on them.
At the time the only place i knew that did that was IRG... i'm sure others are just as good.
Make sure you take into account the exchange rate... for a rare or impossible rifle its good but for a normal rifle it's not Worth it.