So I FINALLY broke down and set up the ATO. Total cost to me right now is $22!Materials
Bought 3 float valves on ebay for $7 (only using two but one for a backup).
Used a lid from an old aquarium to attach the float valves to.
Found somebody throwing out a small kitchen trashcan (7 gallons). Cleaned with bleach. However, I'll probably buy one of the larger 13g ones later for $12
Got a Toms Aqualifter pump for $15
knife to cut the wiring
2 wire nuts (you could use electrical tape or any other wire connecting device though)
Works good so far!!
Took about 20min to put together once I had the materials