I can name a few options, I am in this area but I'm on a private yard.
Anyway - look at Finlow Hill / VP Polo and Livery that's near Macclesfield. Nelson Farm Livery which is near Poynton I believe. There's also Gollings on the way to Macc from Wilmslow but I don't think they offer full livery. There's one called Cooper Beeches which is in Over Alderley which I know does livery (or did last time I checked). There's other little yards round and about that area but I don't know their names I think they're probably DIY places. Marple is out of my knowledge area so can't advise sorry.
Hope this helps.
