Law application from Canada

Hi all! I'm a Canadian high school student applying to study law at Oxford, UCL, LSE, KCL, and Warwick for 2025. The qualifications in Canada are a bit different, with only our diploma and completed high school courses as a certification of our aptitude/achievements, no standardised tests—nothing. Obviously this makes us extremely uncompetitive in international applications, especially to the schools of the caliber I'm hoping to attend. I understand that many unis will say that my diploma is sufficient, but I want to make my application more competitive, especially since Cambridge has actually declared the Canadian diploma insufficient and that it must be accompanied by US qualifications to be on par. To remedy this I've been taking AP exams. I have two 5s right now, and I am taking three-four more exams next AP season. I was wondering if any of you might have insight into what would be enough to make me competitive/on par with other applicants? Say I have a stellar LNAT score and a great PS, would my two 5s be sufficient? Thanks!