You have obviously researched the viability of a pharmacist in Rose Hill and I wish you well, should you proceed.
My only observation is that I believe that the main Doctors surgeries are in Marple Town Centre and The Cottage Surgery and they are serviced in the main by Boots in Market St and the two co-op chemists (Marks) on Stockport Rd.
These three shops are very conveniently placed near to the clinics, doctors and dentists. I have several repeat prescriptions and I use the telephone service at Boots which I find to be very satisfactory and I have also received excellent service from the co-op chemists.
No doubt such an establishment would be used by the residents of Rose Hill in particular users of repeat prescriptions
best of luck to you