Okay, so everything arrived today and it's installed now! Booyah!
So the 12mm Euro Adapter fits the N, however due to how far you have to screw the shifter on and how high the N's reverse lockout moves up you can't mount the shifter and have a reverse gear. Solution:
Now what you'll have to do is put the car in reverse and make sure there's still a bit of space left between the bottom of the 12mm Euro Adapter and thr top of the "shortened" (read: sawed off) reverse lockout.
Then tighten everything down and make sure it fits your shifting position comfortably and you should have something that looks a little like this:
LMAO! Gently down the stream then, @NULLOBANDITO. I'll let you know how the new Boomba and transmission & Shifter bushing work, when they arrive and I get them installed. I think it will tighten the gate up a bit.