Try to google these three clinics bud.
They should have their websites, google it and send your pictures. They will quote you shortly.
I believe that they are the best clinics in your budget.
Serkan Aygin
Asuman Hairttansplant
Life Hair ( Sahin Celik) I would go this one as I believe this is the cheaper and better one but you need to take another short flight from Istanbul to go to his city)