Apple iPhone (Gibson/Turtle Creek)

Senior citizen living on a very fixed, limited income. I have a very old Apple iPhone that is on its last electronic cycles, but the model is too old for upgrading, and I'm not sure there are batteries available any longer. If anyone in LR, NLR, Sherwood, Jacksonville, northern Pulaski County has an iPhone not too old and in good (very good?) condition, please let me know? Please make sure it's the "full package", with the right cords.