i am putting together my ARF i recieved today... the book says i need (2) 17-1/2 threaded aileron control rods... i only have one of those.... i am thinking its a typo or something because the distance from my aileron servo and the aileron torque rods are only about 5 1/2 inches and i have (2) 6inch rods.. am i correct on this?

also when i got it and opened the box there is a small crack in the covering and most likely the wood under it ( the excess wood beside the motor mount ( not attached to the motor mount) .. i am not really worried about it since it wont affect the motor at all.. what would be the best way to fix this? piece of tape ontop of some CA? afterall its only a trainer... it doesnt have to be pretty..