Gotta say for a system that tight a one of these closed loop sytems may be the ticket as opossed to a pancake air cooler.
They are not great but preform on par with top of the line air
Gettin rid of the heat the 580 will make will be paramount. \
This case is 15" high and 19" deep, going to roll with it
Here are some I have been looking at
http://www.reidsupply.com/Results.aspx?pid=10022021