D'you want Cueball's help?
First up, welcome to Manchester
I'm sure one or two will offer assistance.
A few spring to mind for most of the services you're after but piss-drinkers are something of a rarity up here. The other issue you might face is rounding up a few girls you haven't met before if a multi-girl is what you're after. Off the top of my head....
NaughtyAimy - fit PSE milf who is pure filth IMO and was my best 1-2-1 by a margin. Doesn't receive WS's that I'm aware of.
Alana Amor - similar to NA but younger and is capable of dealing with a Rugby team by herself. Fisting is a chargeable extra and I believe does receive piss in the mouth. Now on a Halifax postcode but I'm sure could be persuaded to travel. Has worked with NA recently.
XXXAngela - does anal and (I think) receives WS's in the mouth. Others will have more info about her.
Hot&HornyHannah82 - not seen her for 4 years or more, but drank piss like a champ last time, both mine directly and her own from a nice wine glass - all very civilised which I'm sure you'll appreciate. Quirky character.
Siennakink - another possible, others will have a better idea than me. Officially doesn't do anal, but unofficially I've had my cock up there.
I have a request of my own. Can you pop MissKDD in your suitcase and let me know when you're coming? I'd like to organise my own FFM with her and Aimy......
If I were going about something like this I might well approach NaughtyAimy (ex-Sandys, knows loads of girls) and see if she could help set it up.
Apologies for no links but easily searched on here.