Dear seller, I have in my card 24 items to build quadricipter X550, but I'm not sure enough it or not, may be I ordered something extra , what I don't need ? Can you help me with this matter?

Dear seller, I have in my card 24 items to build quadricipter X550, but I'm not sure enough it or not, may be I ordered something extra , what I don't need ? Can you help me with this matter? Now known weight of purchase and you can determine the value of the shipment. I would like to know how much it will cost?