Ice-probe
5 gallon cooler
Ink bird thermostat
silicone
Tools= drill and half inch drill bit, you can use a smaller drill bit but it will not be as precise as a larger one but it really doesn't matter since the probe has a large plastic washer to cover any mistakes.
Unscrew the spout that came with the cooler and use the half inch drill to make the hole wider. Doesnt take long at all, just rotate the drill in a circular motion till its wide enough. Make sure its wide enough by placing the probe in the hole. Keep drilling till it goes through, it doesn't have to be perfect. Now its time to put the ice probe onto the cooler. Make sure to use a decent amount of silicone on the ice probe washer so it doesn't leak and try not to get silicone on the probe sticking through. If you do just wipe off. The ink bird thermostat will need a power cord. I bought a cheap extension cord and severed the wires on one end and used the female part to power the ice probe and the male side to power the ink bird thermostat. The instructions are very simple and some comments on amazon have some better ones with pictures.
Homemade peltier cooler;
http://www.ebay.com/itm/TEC1-12706-...988127?hash=item1c7724da1f:g:lyEAAOSw5cNYR3eG
http://www.ebay.com/itm/Ultra-quiet...Pump-New-BN-/122232518690?hash=item1c75a03822
http://www.ebay.com/itm/12V-5A-Powe...05-P01-/162449980344?var=&hash=item25d2c5fbb8
http://www.ebay.com/itm/ARCTIC-Alpi...420470?hash=item4d58b02476:g:RokAAOSw~y9ZBVNf
http://www.ebay.com/itm/Liquid-Cool...866573?hash=item2cb38c228d:g:7jkAAOSwh2xX-WWI
You will also need tubing, I forgot what size since its been years ago. I bought the tubing from lowes awhile back. You basically sandwich the peltier plate onto the cpu cooler, then the water block. Strip the wires off the laptop ac adapter and connect them all up. Be careful about how you tie in the positive and negative on the peltier cooler. If you mix them up it will cool the wrong end

Its all color coded so it shouldn't be too hard. Make sure you use cpu thermal paste when you attach the pelteir cooler, cpu cooler, and water block together. After you have that together run them to your reservoir