300 workout

So here it is, my own '300' Workout. Basically 300 reps in a workout.
Essentially you can pick any 6 exercises and do 50 reps of each. Here's my take on it, good mix of strength cardio training. 

50 Burpees
50 Chest as ( 2x(10 Bench Press, 5 Press ups), 10 Bench) - 40kg barbell
50 Squats - 40kg barbell on back
50 Sit Ups
50 Single Arm Row - 20kg dumbell, 25 reps each side
50 Kettlebell swings - 20kg bell

Time yourself for the circuit. First attempt was a steady 14' 27". I will try this again next week and try and beat the time.