Swapping a Pistol Grip AUTO shifter out for factory one - 71 Duster

This is the second thing I want to change in my "new" car - the first was to remove all of the window tint, did that yesterday. This is a 71 340 car, factory bucket console car. When Mike Allen had it it had the factory shifter in it, that's what I want back in it. Somewhere along the line a pistol grip stalk was installed - man is this clunky to work, it's gotta go! The trans has a manual valve body but not a reverse pattern 1>2>3 like Mopar intended it to be.

I have the factory shifter to go back in, I'm hoping this is as easy as I hope it's going to be. Any "gotcha's" to look out for?

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