It's all about the bling! Ditch the multi-option reservoir for an integral tank res/pump combo- which would allow for the third fan to be fitted to the roof radiator. Can't do much about the rear radiator hose placement short of having either the line or rad outside the chassis. Inverting the radiator would cause a sharp radius bend in the line and clearance problems for the fan with the fan mounted on the top rad above. The Koolance QDC looks like it could add some stress to the line over time where it is placed- those things are heavy. This is one of my 1/2" - 5/8" compression QDC's next to a standard 1/2" barb and 1/2"-5/8" Bitspower compression fitting.