Gambling .com has been targeting CA for literally years and years. The OP's site seems to favour the UK with his .com. I'm not saying it wont work, but... I sure wouldn't bank on it working 100%.
I'd be more inclined (have done in the past) to use a subdomain. EG: ca.yourwebsite.com
Google will treat the subdomain as a separate site.
Personally, I wouldn't risk screwing around with a site's
SEO.
Leave the site as is, and use a subdomain instead. Changing content on a site, can result in p#ssing away a lot of hard work.
FYI... one may never, ever, get back to the SERP's before said changes.