Why would you need to carry all that stuff? I keep my passport, wallet and credit card locked in my room safe. There is very little use for credit card and passport. I carry a color copy of my passport and a few hundred rmb. If I find something expensive that I want to buy, I just go back to my room and get more money. This way, I will never lose any more money than a few hundred rmb. Unless you are a really big spender there is no reason why you can not survive on 800rmb per day. Just my opinion however I have been doing this in China for over 10 years and never had a problem.