Hi Brian,
Wecome to the forum,wether you can live on that may depend on wether you are buying or renting,or do you have property to sell.If this is all taken care of then you need to budget for utility bills(depends on type of property)transport (car,bike if needed).It would be worthwhile speaking to someone in the area in a similar situation.It is true that cost of living can be cheaper in Turkey but it all depends on your standard of living.
All the best