Hi, guys, taobao 11.11 is coming, in dilemma which courrier service to choose, and which route?

Sea or by Air

Sea - Need to pay 6% GST, and may take very long to reach me, will sea shipment kena tahan by custom for duty tax?

Air - No need pay GST, but i kinda worry about the duty tax, i will need to separate it to few parcel.

I think i may spend around 2k to 3k..for own use, mainly clothes, shoe, and children toys (i think will be totally 10kg)
so better to ship by sea or air?