I think those would be fine, the knives you mentioned are quite common to see around Nova Scotia on belts or pocket clips, I find it odd but a lot of people using a pocket clip, have the knife hanging outside.
Something else, I was on a tool truck at work yesterday, he keeps a selection of knives and he had a few automatics, I mentioned legality and if they were older stock because of things I'd heard, he said no, he sells a lot so is always reordering from outside Canada with no issues.
Maybe keep them in your luggage at the border as opposed to on you, unfortunately you never know how an individual official will interpret things
Safe travels, mid summer is usually nice weather