Making a fermentation chamber

[Frankdaatank24]

Ok, so I've wanted for a long time to get a fermentation chamber up and running, and now that I moved to Arizona I pretty much have to in order to keep homebrewing.

So, here is my dilema. I recently came into a fridge that was built in 2005, from a friend that just gave it to me. The model number is ET1CHMXKT03. Many a brew will be flowing his way! Anyways, its a standard fridge with freezer on top.

What I want do to is mod it to allow both freezer and fridge to operate independantly (I want ice and beer glasses on top and fermenting beer/keg setup on bottom). I know there are a few controllers out there that will only do one of two things: get installed in line where it will cut power off to the entire fridge when the temp gets below a threshold or do the above and turn on a heater when the temp drops below a set point.

Are there any controllers out there that will do what I want? I am pretty handy electrical wise, I just need a schematic and go. And any suggestions would be greatly appreciated!

 

[broadbill]

Fridge temp is regulated by moving cold air from freezer into fridge compartment. If you can get to the circuit that controls the vent and control it with a temp controller, that should work.

no idea on schematic