Build Tesla's Fuelless Generator (U.S. Patent #685,957). Or, an easier way would probably to just have a gas generator on hand, and stock up on fuel from a nearby gas station. It should last you some time if you ration it, i.e. don't use it to power your computer to watch porn. I would stick with old Playboy/girl magazines.
Aquaponics would be a good idea if you had sustainable power of some sort, but I think a good solar panel and pump will be enough to power it. Heck you can find one on Fleabay for $15.
I think it's easier to just plug plants into the ground and use sun & rain. Plumbing will most likely fail sometime into the future, and you want to conserve fuel for other necessities.
Whatever the design, you'll need barriers to ward off zombie racoons, round poles that they can't latch onto (metal preferred) with barbed wire fences. You'll want to run high voltage through these fences, which is why we're conserving fuel (safety first). Regular barbed wires may keep out regular animals, but you need to zap and fry zombified ones.
Not convinced?