I agree,
even if it's a remote possibility you do NOT want to piss off a horny chick who's up for it by initiating talk about money or P4P
truth is the WGs - or, in most cases, their agent - get to the point on the second message if not the first "are you looking for a girl service?"
Yes, use google translate
Just start with the closest girl, and work down the list
you can open with a simple "你好“ if she replies you could maybe ask "有空吗?" and go from there
Even if nothing happens it's still more fun than watching CNN for an hour