There's way too much isolation work using low reps for me. I would greatly simplify this and not worry about things like getting enough brachialis work. I also wouldn't recommend going so low with the reps on the isolation stuff. That's a great way to injure yourself. If you are really working hard on the main exercises, that much isolation work is unneccessary in my opinion. I would suggest something more simple such as:
A- SQ, BP, bent row 5x5; optional 3 sets of 10-20 of one bicep and one tricep exercise
B- DL 5x2, military press 5x5, chins work up to sets of 10 then add weight; optional arm work as above
You could also throw in a few sets of ab work from time to time. If you are working hard and driving up the poundages on the main lifts you don't need a million isolation exercises. If you eat enough this will be plenty to get big and strong.