Instead of putting an intercooler inline with the radiator and fan, is there room for a top mounted intercooler with, dare I say it, a hood scoop to provide cooling air flow? You wouldn't need extra fan power, and sometimes it can be easier to fit an intercooler above or to the side of the engine. Then you can use a hood scoop, WRX style, or run a ram air hose up from under the car or something. I know hood scoops are awfully 'ricer', but I have no qualms with them as long as they are functional and not those fiberglass deals w/ double stick tape.
Just tossing the idea out there.
peace,
sam