Ross does pistols and front squats. Not doing back squats does not equal not squatting at all.
Personally i'd look to some sort of periodised plan where you would complete Ross' 50 day program from infinite intensity then once done, take a week off any serious lifting and then go into a 4-6 week maximum strength program.
It all depends on how much you're competing. If you only fight every 3-4 months then something like the above would probably be fine as you could ease off on the skill sessions whilst developing max strength. and then bring back a good conditioning program like II for the last 2-3 months prior to competition.
There are so many variables to take into account though.
The Bas stuff could be thrown in in place of a warrior challenge every now and then.
And lets not forget that even though Ross doesn't train traditional heavy deadlifts, he can still DL almost 3 times his bodyweight: