there is also a medium duty truck set up that used a high mounted mechanical fan set up. just don't remember the application. I did a quick google search but didn't come up with anything. maybe it was a big block thing, can't remember. it would get the fan up in the middle of the rad area for sure. then build a fan shroud that works. here is a tech article from the HAMB that moves the water pump up so the fan sits higher on the rad.
https://www.jalopyjournal.com/forum/...al-fan.168231/
here is a hotrod network version of building your own fan shroud from metal
http://www.hotrod.com/articles/1006s...d-fabrication/
and fiberglass from a different site
http://www.route66hotrodhigh.com/FanShroud.html
this is hotrodding, your truck, do what you like. consider the advice given but do what you want, as long as it is safe for you and everybody else driving on the same roads.