This is a bad choice. There i̶s̶ ̶a̶ ̶h̶u̶g̶e̶ ̶d̶i̶f̶f̶e̶r̶e̶n̶c̶e̶ most likely is a large difference between red threadlock compound and green retaining compound. I would recommend only using green for this.
The hub bolts are a known issue, had to grind down mine a bit too. Same with the hanger fitment, except it was way worse on mine since I have the oil slicks. Had to grind a bit off the hanger.
Don’t, if you have it cockeyed, it can ruin the gear teeth alignement. It should be pressed on smoothly. You can use spacers and the nut trick
Consider watching my assembly / teardown video and then report back with further questions 
absolutely not haha the drivetrain would shred itself if the pinion were moving around like that. You need green retaining compound