Sarge......power cleans are caught high, a front squat above paralell is called the 'power position', hence the term power clean, lol.....the weight is lighter than you'd use with squat cleans because you catch them higher.
Be very conservative when plugging in the max, these are much different than a static lift, and 5 more lbs can feel like 50 if your technique isn't right on.....if I were you, I'd go 5x5 at 135 and add 5-10lbs each time you do them, this will guarantee you don't overshoot and develop bad habbits with them, go much heavier on the clean pulls.....I would finish the power cleans, then go right into 4 sets of 3 clean pulls, pyramid the clean pulls, and although it might not be possible at first, shoot for your top set to be at least 100lbs more that your top set of power cleans, on the clean pulls, the bar doesn't need to be any higher than belly button height, don't pull with the arms and do a cheating upright row.......this is a way to pull from the floor without your CNS getting demolished by deadlifting every single week......of course you'll deadlift every other Wed.
Yeah, the bench is the upper body press (save for declines) where you can handle the most weight possible, it overloads the upper body, giving the entire shoulder girdle a reason to get bigger.