nitesh is right.
If you are not planning to get specific parts that is sold by HK only, You can get dirt cheap deals on motors, ESC , Flight control board, DJI F450 Frame, LiPo chargers , other accessories and h/w from ebay.com with out any extra shipping costs or customs hassles .
As these items arrive in separate small packets through international airmail, the chance of customs duty is very very low. Also, your money is safe if transaction is made through paypal , If item didn't arrive at the given time frame, request a refund, and the case will be cleared in a weak maximum (unlike HK) .
Only problem is it will take 7(I got a parcel in 7 days) to 30 Days for delivery. but considering the price you get the items, it's not much of a problem