Here's the best you can do with a US market bolt up solution:

90 2.6 4wd pickup uses the v5m21 gearbox, with a stronger 5th gear and improved shifter on 2nd gear.

Otherwise, it's finding/making a bellhousing for a v5mt1 or importing a 2.5 diesel v4m31, or sourcing an adapter plate for another make driver's drop 5spd/tcase.

Not responsible for advice not taken...