water tank feeder

I just built me a new feeder out of a galvanized water tank that I had replaced a few years ago, (I told my wife it would come in handy for something). I was wondering if anyone had an idea on how to put a varmint cage on the bottom of it, the actual bottom is now the top. I need something that I can drop own fairly easily so that I can change my settings, make repairs, etc. Any help would be appreciated.

You can make your own pretty easy with some 1"x2" chicken wire. OR Monarch feeders (www.deerfeeders.com) makes one that goes on with wing nuts and is very easy to swing out of the way to make adjustments or repairs.