None of that (Except of course, the strong central government) is disallowed, or even discouraged, in AnCap. It's possible that the worker's collectives may even turn out to be more efficient than the top-down organizations, and out-compete them.
I actually don't think they'd thrive in that environment, because in a world driven purely by profits, the businesses most willing to get their hands dirty will always win. And use the money to cover up their actions with massive PR blitzes to pacify the easily-misled public. I tend to think that purely from the standpoint of cold, hard, cash, they would be less efficient than a top-down business (especially with the inevitably higher wages for the worker-owners), but that a slight loss of efficiency would be a small price to pay to prevent the havoc that big business wreaks on this entire planet.
I do think there are still problems with this approach. For instance, very few Americans seem to care at all that the backbreaking labor and wealth stolen from the Global South is what makes it possible for us to enjoy our current standard of living. I don't know if I see that changing. Out of sight, out of mind, right? But at least collectives would be a step in the right direction.