Convince me to put a TKX in my Dart

Yeah yeah... lol. I did see the pics of your sheetmetal work making the new tunnel, I'm not confident I'd have the skills or patience to make it that "tight". I'm also not running a console which hides most of the bulk and while it would be sweet to have one it would look out of place since the rest of my interior is original and not in great shape.

I think you're selling yourself short! I had to do more welding because of the previous 4 speed conversion, for a straight auto to T56 it would be a little easier. I'm not some master bodyman either, I did all that welding with a 1971 Millermatic 15 with a Tweco gun conversion and Harbor Freight .030 wire, it's definitely NOT high tech or the best sheet metal set up. And no sheet metal tools or anything, just a couple hammers, dollies and clamps. I also wasn't trying to keep the tunnel small, if anything I made it larger than it needed to be in a lot of places so I would have easier access to stuff from below.

Here'e a picture before I added the console, this a 4 speed carpet (the hole is from the old 833 shifter location). Needs a vacuum and my fan controller tucked out of the way but you get the idea.
IMG_6561.jpeg