After you figure out the angle the hammer strut need to dangle at(angle of the dangle) the dissassembly and reassembly becomes ALOT easier.
I have taken mine apart SOO many times it’s almost second nature. My buddy and I put approximately 156,000 rounds thru each of our Mark II’s over a period of 3 years, 1000+ rounds a weekend for 3 Years. But, that was back when a brick cost $8.70.
Take it apart, study it, put it together and it will be a breeze.
AR15-SBR