Looks like you are all set. Looks good, I had never seen the trigger guards like those, looking them up as we speak...
Those trigger guards snap on; they are a perfect fit. They fit on very tightly. I watched YouTube videos of how various people used them on their carries, just to get some idea. A lot of them have the lanyard attached to their belt so that it pulls loose during the draw. But I rip mine off with my hand as I pull it from the chest band.