I did it in my cab truck. I used a Taurus electric fan controlled by a DC Controls fan controller. I used metal pipe to run the length of the rig with pieces of radiator hoses at the ends to make all the connections. I also plumbed an inline radiator cap thing in the upper hose to bleed air out of the system and be able to fill it from both ends. I never had any trouble from it.
93 Taurus fan, stock XJ radiator, Napa ST85 relay, remote fill/bleed port, exhaust pipe for tubes, random hoses for elbows/ bends. Easy stuff really.
But why the need to do it?