Definitely will be power floated, I'm assuming the acid etch will be enough then to get a good bond? I've seen videos with guys grinding/sanding floated floors to give a rough surface for adhesion.
From what I've learned the acid etch should be enough. Some people put a primer down after that.
I think I'll also do mine myself.
Still waiting for the roof to go on and windows to be delivered and currently ordering the roller door.