To the original question. Yes, they will fit fine.
Regarding cardio, I'm pretty sure the primal stuff is low intensity stuff like walks, hiking etc. That won't mess you up at all.
To be honest, I'm suspicious of anyone who blames "chronic cardio" as the absolute evil it's being made out to be. There are plenty of athletes who do more low intensity work to build overall work capacity. Not in the cf sense though.
And if you don't think kettleball squat cleans are difficult, I say, step up to the med-ball
- CJ Kim