The problem with Newcastle is there is literally only Diamonds and Amour as the two viable sources of Punting here. Adultwork is dead unless you want to book either Northern Kara or BritishSteele as there is nobody else really on there legit that I can see.
There is Prestige and EscortsNorthEast but they are way more expensive.
Bit harsh Anth - there's at least a dozen very established indies on AW like Rosina, Shauna, Amy, Jessica Taylor, Brooke Knights and others - not all in your age or size range I admit Anth but others like different things. Beyond that I accept there's a clutch of girls who are just agency girls after extra bookings and a bunch of tourers/unknowns or possible scams.
As was posted elsewhere there are agencies which are never really discussed here because they maybe have outcall only or more mature escorts.
Think it's the same in other areas - look in the Yorkshire section and Flying Blue lists all the massage parlours which used to exist but are long closed and in Edinburgh they probably will be closed soon. Sorting out work accommodation that's within the law seems to be the big problem for girls to set up as indies round here - and sorry to disagree James but it just ain't that easy round here, we just don't have the mass of flats they have in London.