How far is the distance from baggage claim - customs - transfer desk? Porters?

It is too far from the baggage claim area to the transfer desk. There are porters available in the airport and the cost depends on your luggage amount. You need to pay with RMB. Well, to be honest, it is not so safe to let the porter help you. If possible, you'd better do that by yourself or ask for the airport staff to help you.