What size solar panel should i expect to buy to keep a deep cycle battery charged.?

My plan is a remote garden. I want to have a solar panel hooked up to a couple deep cycle batteries, then to and inverter, then to a timer, then to a water pump/ webcam. The concept would be to plant a garden on land i own, and have the water pump turn on once a day for a half hour or so to pump well water to the... show more My plan is a remote garden. I want to have a solar panel hooked up to a couple deep cycle batteries, then to and inverter, then to a timer, then to a water pump/ webcam. The concept would be to plant a garden on land i own, and have the water pump turn on once a day for a half hour or so to pump well water to the garden. and possibly expanded into a weather station with a basic PC and weather monitoring sensors. What sized solar panel should i buy to maintain a charge in the battery? and does this project sound feasible to anyone else?
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