Happ sells some arcade fans(4.69" square x 1.5" deep) , these are die cast metal & they are a little high but i used 2 of them blowing out the top of my cab since heats rises...
below are the specs i could not imagine 8 fans that would sound like a dc3 taking off
thanks
dm
Top quality fan cools the electronics in your video game
Industry standard size 4.69" square x 1.5" deep
Low noise; impedance protected
110/120V AC fan easily mounts in most equipment
UL Approved
Sealed ball bearing type
Air flow 98-106 CFM ( Cubic feet per minute)
Cast aluminum frame
2,900 - 3,200 RPM