Convince me to put a TKX in my Dart
Just to add to the TKX info...
I'm in the process of fabbing up the console location using a stock auto console with a 4 speed top plate.
If you use the standard shift location (closer to the tail shaft) and a standard 45* Hurst type shifter, the console will have to be moved too far toward the rear to where the front seats will both have to be pushed back pretty far with no adjustability forward because the console will block their ability to go forward. Also the console will be sitting too far on the passenger side since the shifter comes out of the center of the transmission tunnel and the transmission tunnels aren't centered in these cars.
The fix is I built a bracket that moves the shifter about 1 1/2" closer to the driver side and about 4" forward. This allows the console to move forward and sit a little closer to the driver side, which centers the console between the two seats. I'll get measurements later, once it's all fully fabbed up.
There are two issues left. One is if the shifter isn't fabbed far enough forward, when you shift into 2nd, 4th or reverse, the shifter bracket coming out of the transmission will hit the bottom part of the ash tray section of the console. You really have to fit the shifter in the console with the boot and make sure that the shifter is completely centered in the boot or even a smidge forward. A smidge backward and it'll come into contact with the ash tray.
The last issue is that the shifter will rub on the metal frame of the console shift boot when going into reverse because reverse is just a little more to the right than the pattern to get into 5th. I had to heat up the shift boot a bit and used a wood chisel to carefully separate the rubber boot from the metal frame. Then I used a die grinder to grind the inside of the frame by a 1/4" or so. I put the rubber back on, installed in the console and now the shifter doesn't rub on anything when throwing it over to reverse and you'd never know the work was done when looking at the top of the console.