You need to loctite the hand grip screw.
You need some electrical tape to cover some area, to prevent scratching when tapping the bolt release pin. Some lubricant, i use Mobil1 Full Synthetic Oil 5W-30 to lubricate when needed.
Would be better if you have a lower receiver vise block to hold the lower while you are working on it. Need buffer tube wrench also.
Becareful when putting in the takedown detent pins, they can fly out and use goggle!.
Browse some youtube, they have some good videos. Brownells has good videos too.