I was too slow to see how many interview spots there were but I assume total number is however many multiplied by day. I'm going to guess about 10-12 days, probably 8 per day. Assume equal for advanced and ab initio and we're likely in the top 30-50 for each stream. Could be totally wrong of course.
Nice surprise that both are done on the same assessment days (sort of) double your odds.
I have a hunch they'll hire at the upper limit of their cadet class sizes, given their direct entry hiring.