The most important thing is to find a reputable breeder.
Since you live in Canada, that translates to 2,500 - 3,000 $.
I had Griffon for almost 16 years. When I run him in NAVHDA NA
test, had an opportunity to see a Griffon female, who didn't want to enter water.
Couldn't believe it. Make sure that a pup comes from excellent hunting line.
My pup's father was one of 19 NAVHDA Versatile Champions in both Canada
and US.