1992 Toyota Camry

My Camry just died while I was driving it, it would crank over but would not stat. The auto repair shop said it was my coil, they replaced it, cost be $90.00 diagnostic and $249.00 for the coil and labor. They told me I also would need a new rotor and cover, and maybe replace the spark plug wires. so, isn't a rotor and cover easy to replace and how? Can I pick the parts up at Auto Zone or Napa? Tom
teaglet1@yahoo.com