I Need Help

OK this is my first time ordering buttons and trying to mod my HRAP3. Can someone tell me what i need to mod the stick i already have a star screw driver is that all i will need?.

Also am i ordering the right parts for my stick? i ordered 6 Sanwa OBSF-30 green buttons and 2 Sanwa OBSF-24 green buttons 2 Sanwa OBSM- 30 Hole plugs and Sanwa LB-35 Joystick Ball Top green. will the ball top fit on the stick that the HRAP3 comes with ? :party: