i don't understand the reason why you would be looking for a street scene in galway when you can pay the same money and can get a better service in a private and more comfortable atmosphere in an escort property...
I have done both street girls and escorts, and with a street girl, you see her, agree what your gonna do, agree the price and go do it.
With an escort, its you agree to meet her, give her the money, she then tells you "I don't do kissing, you can't play with my tits, here's my pussy cum quickly and u can leave". Even if she is a dog you feel inclined to pay her, because her pimp could batter you if he finds out.
As for price wise most street girls will give sex for under a hundred, where as the minimum for an escort is 150. And if it is a quiet night and she is not getting any action, or if the weather is shite, she might give you a couple of hours for only 200 euros. I have never heard of an escort doing that.