I am looking to build a custom gearbox for my CYMA CM028U (Kalahiknov 60th Anniversary Tactical AK-47 RIS). I am hoping to use the stock high torque motor that came with the gun. I want to use the Angel Custom 8mm CNC reinforced mechbox with 8mm bearings. I want the gun to shoot 350 or below with .2 (for CQB) but not any lower than 320-330. I am open to taking any part recommendations for the gearbox. Please include the companies of the parts you list. Also include a website I can buy them on.