hi. i'm going to Yiwu this december 2015. how i can go by cheaper way?

should i take bus/train from guangzhou or direct to hangzhou or YW? because i did some research, if i go by flight to either of the cities from malaysia , there would have transit for 8 hour and 15 hour. if take flight from kl to guangzhou,can i take bus or train and go to YW?thanks!