Strongmen PRACTICED they didn't TRAIN. Their show lifts are feats, demonstrations that must be practiced, skills that need to be mastered. I don't like to go with sets/reps/time. if you go to the driving range you don't go there to hit 13 pitching wedges, 17 7 irons, 12 5 irons, etc. You go there to practice your swing. Same thing with strongmen feats. Go there to practice them. Do not fatigue yourself too much, do not go for max weight or max time. Go for skill development. Pick out the most important movements for you RIGHT NOW and become a master at them... practice them 3-5 times a week each in 30-40 minutes sessions with another 30-40 minutes devoted to building strength on big basic lifts.