Now I just went out and looked and saw there isn't going to be enough room to use 4 10" fans with a shroud or even two 10".
But if I just strap the fans to the radiator there may be room for 4 10" ers.
Or I could make a shroud to put the clutch fan back on.
That thing was making all kinds of noise and stealing HP, but may prove to be more reliable.
I don't think a single 14" fan will be enough even with a shroud.