1.5" pool/spa hose out of the air box (although I think you could use 1.25"), then either run that outside the front fender to a PVC riser, or through a hole cut in the fender to a PVC riser. Or you can put the hose into the instrument pod for a stealth snorkel.
Don't forget about the diff/ brake/carb vents and the cab drain.
Don't forget about the diff/ brake/carb vents and the cab drain.