A body 4 speed in a truck. Can this be done?

I have two D-100 trucks that came from the factory with a 225 engine and 833 OD trans.
A 1980 and a 1987.
Both use the front shifter mount, and both use a flat plate (that can't be too hard to fabricate) to mount the shifter to the mount location.

IIRC the actual shifter mechanism sits basically straight above the mount location, elevated about 2-3 inches.

Don't forget the shift rods.