I think the bergara would serve you well for a first rifle. There are other options out there that would do well also and save you a bit of coin, but the bergara premier action is a very nice action, and paired with a triggertech and MPA chassis would be a very nice combo. I previously had a bergara HMR pro and I probably wouldn't have made my jump to custom rifles so quickly if it was a lefty. It was one of my finest shooting rifles to date. The action felt about the same as my zermatt origin action also.
You could probably get one of the MPA rifles from gobigtactical, but that would likely run you another $1000. The BA comp chassis is a bit dated on features, and I think the MPA PMR rifles come with upgraded chassis, plus better actions (barrels are probably comparable). Or you could see what's in the EE here on CGN.
You also didn't mention if you reload or not. You'll likely need to reload to shoot 6GT, I'm not sure how easy it will be to find ammo readily available in Canada. 6 creed is more available but is also a barrel burner. Just some things to consider if you don't plan on competing with this rifle. Will take you a bit longer to burn out the barrel if you don't compete, but still something to consider.