Colling fan delima

[chincha805]

i can't make up my mind , please help.
i have a 49 chevy p/u with a 4.3 V6 with a after market Speedway radiator, i need to decide on the fan. i am leaning towards a mechanical fan, i know the electric fans more common, but i am trying to go without all the wiring involved. my concern with the mechanical fan is the freeway speeds and overheating. should i put a fan clutch on it also, this is not a daily driver, more of a grocery getter, sunday cruiser etc. any input on any of the options is appreciated.
thanks