Hi Thio,
you can find the wholesale baby and kidswear in zhongshan 8 road,there is a big baby products wholesale market.you also can looking for hotel in zhongshan 8 road.no direct bus or train from guangzhou baiyun airport to shanghai.you can take the train at guanzhou railway station or guangzhou east reailway station to shanghai,but it need 21 hours,it is very Tired.I suggest you take the airplane at guangzhou baiyun airport to shanghai,it need 3 hours,it is very fast.