hi guys, i think i have nearly everything to start work on a new feather, the only thing i think im short of is a firing mechanism for a co2 flipper,does anyone have any ideas what i might need for this please, i have got 2 gimson gr02 motors, 2 electronize speed controllers, i have a radio that came with a reciever, a vast amount of 20mm angle iron, a pair of banebot wheels, an old co2 fire extguisher, and a regulator, is there anything else i need?