Barrel shroud

[WhippinSaw]

I am trying to move my radiator fan forward 15/16 inch to center it in the barrel shroud.
I was going to move the barrel shroud forward 1/2 inch to split difference
but that causes gap by radiator.( I might hide electric fan in there.)
Can i use a different fan or water pump to make it work?
The piece on top of the radiator is all that is left from the original shroud, cant find any repro shrouds for the 63, so trying to make the barrel shroud I found in the parts forum here work a little. Right now I don't think its working that good.
TIA

Got the truck running after 20+ years with much help from this forum and have been enjoying it the last 5 years, Once you get it on the road You just want to drive it, time for me to put some luv back into the truck.
This forum is a good place to start.