You will need the pedels and Clutch master. Run a line from the Master to the slave. Flywheel, New console and shift boot setup, and your in buisness. All the holes should be there, or markings to do it in the right spot. You may need all the pedels, or just the clutch. I havn't looked at how mine is set up.
Best bet would be to get all the parts off the same truck, then you will see how it goes together. The hard part is finding the Turbo Trans setup. The last one I saw for sale was $900 for Trans and Tcase. And that was one Marlin rebuilt. I think Eric sold his for $500 without the case.
You could go with a W56 but then you will loose the low first gear. This is needed for street driving due to turbo lag.
I don't know much about the R150, other than you can rebuild it ith lower gears.