Ice Chamber

ok so I had been having issues with my first brew batch, a hard apple cider, trying to keep the temp alone my room would range from 70-80 degrees, tried a fan blowing on it coming directly from the ac vent no go.... as most of you know 72 would be ok for a good brew if maintained, so I did the redneck thing and built a chamber for keeping it cool, since it is in the house I wont have to worry about heating it just cooling it, I made the chamber big enough to fit 2 maybe 3 of my current bottling/fermenting buckets in the bucket is a 7.8 gallon bucket and measures about 15" across and about 18" tall with air lock, so I measured it to be about 5'x20" inside with a 1'x20" chamber for ice to cool air for fan.
I used about 1 2/3 sheets of 4'x8' 2" thick foam about 8 dowel pins, and the redneck part 2 rolls of duct tape! currently have 2 gallon size bags of ice in the "ice chamber" and its already reading an ambient temp of 69 after only 15 minutes from 75 when I put the ice and wort in... the fan is one of the O2cool 8" fans set on low from Wal-mart! I don't have my temp controller in yet till tomorrow
current cost of materials:
Lowes
2" foam board from 2@ $26.98
Dowel pins (for lid) 8pcs $1.98

Walmart
Duct tape 2@ $3.00
Fan $15.88
Electric box (for plug socket) $1.47
Wall Plug socket $0.57
wall plate cover $0.37

Amazon
Elitech temp controller $16.64 (plus shipping)