Offer for 1.5t electric chain hoist from Zambia

Customer: Please urgently give me a quote for the following item with freight, lead time and datasheet.
1. Chain hoist electrical 1.5 ton single reeved 15m chain fall chain size; 8mm Voltage, 380V Qty 1

RAMHOIST: 690 USD/unit (with hook suspension，type: RM01501S)
Lead time: 20 days
May i know which sea port is convenient for you to pick up then i will calculated the freight accordingly, thanks

Customer: Thank you for your email, first and foremost how heavy is it ? I prefer Lusaka International airport, Zambia

RAMHOIST:  1PKGS，150KG，0.2CBM
9.5US $/KG *150KG = 1425 US $
So Total: 690 + 1425 = 2115 US $