I will be arriving in Guangzhou Airport on 6th October. I’m going to Dong Fang Hotel.

I understand there is a airport express bus No. 5 that has a stop near the hotel.
Where in the airport can i find the bus No.5 ? where can i buy the ticket?

Second question is are there any hardware and home improvement wholesale markets in the city? hope you can give me name and locations of the markets. thanks a lot!