Any ideas on the best way to mount an extra intake fan, my lian li a70f currently has 2 1500 rpm 140mm yate loon front intakes, what with the warmer weather id like to add another 120mm 1650 rpm yate loon fan in the 3 spare 5.25 bays, cant afford a kama bay or similair but i do have a set of replacement lian li mesh filtered 5.25 bay covers to mount the fan behind. What would be the best method to hold the fan securely in place?