What wattage are the lights? If you're in the southern states then 1W of panel capacity for every 4W of lighting should easily keep pace with your proposed usage. If you are using 10W or less of panel capacity then you may not need a charge controller, since a controller's primary function is to protect batteries from overcharging.
If the long term plan at that location is to be reliant on batteries, consider replacing the lamps with LED versions now, as you'll do it one day anyway.
Do you have a spare car battery lying around, or will you be purchasing a battery for this application? If so, and you don't need to use it for cranking, buy a deep cycle one.