I think they should have more than 10 for PRC girl
. There are a few of indonesia born chinese too. Yes DC should be around that number 600-700 / night.
There are more choices and cheaper too at GG ktv at joo chiat road though, for PRC girl
I really wont suggest you to get PRC girl at 1001, you should get local indonesian there.
There are many PRC girl in SG