This is what I would do and may, possibly, solicit a better response here.
Go to AW and run a proximity search, using a postcode and selecting one or more subcodes for the localities you are interested in. You may have to do this for more than one top level postcode.
Use other criteria to better filter your results to what you're interested in.
Identify candidate girls.
For each one, check the AW feedback and run an UKP search on the ID number.
Two things may happen -
There is a mention on UKP with useful information, or even better, one or more reviews. If this helps pursue punt, or seek more information.
There is no mention on UKP - trust your judgment and TOFFT, or seek advice of UKP, always posting the link.