Wigs and Hair Extensions Reviews, Tips and Buying Advice

Where are good places to buy synthetic Cosplay/Costume kanekalon fiber wigs in Hong Kong or China?

I was planning a trip to Hong Kong and China over the summer and want to pick up some wigs while being there. I've seen some ebay sellers base their shipping area from either Hong Kong and China. I've also heard that there are a good number of wig stores in Macau and Hong Kong. What are the prices for good quality cosplay/costume wigs in Hong Kong and where are the stores located?

Thanks you.