I added an electric fan out front at the top, makes up for my same situation with the engine fan down low. I do not have a shroud at all and this set up works fine.

Actually I do have a factory shroud off of a two ton, but again it's made to line up with the stock fan location.

It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed