So I'm no expert. I don't compete. But, it seems to me that SHA aren't done with isolated muscle groups; rather, they are whole body efforts. If that's true then, using exercises that principally isolate different muscles (curls, triceps extension, etc) goes at cross purposes to your goal.

Were I considering participating in SHA, I'd be considering CrossFit. Free workouts every day (three on, one off rotation) that: last less than an hour, are random enough to overcome boredom with the same-old-workout-every-day, work the three metabolic pathways, use relatively little specialized equipment, all of which will prepare one for whatever sport-specific training you want to do. Disclaimer: I have no connection with CF except that I use it to prepare for shearing season and to stay in moderately good condition - kilts are too expensive so I want to keep my current weight and measurements.

I notice in your listed workout that you are working mostly the mirror muscles but ignore one of the largest muscle groups: your back. Pullups, back extensions, etc