I used this view to eyeball the installation, in addition to checking the height of over coolers that were known to fit.
CM V10 Hybrid TEC 120mm CPU Cooler
(L) 236.5 x (W) 129.6 x (H) 161.3 mm
(L) 128mm x (W) 104mm x (H) 147mm
Ultra ChillTec TEC CPU Cooler