Best mounting location for new floor shifter

I also just purchased a Hurst Promatic-2 shifter for the dart.

But my only question now is, where do I mount the shifter to make it something like a stock location ?

Seems to be two locations that would work well, first is the rear position, where the tunnel first starts to ramp upwards.

The second position is about 6-8" forward of that, where the tunnel starts to flatten out, more on top of the tunnel.

Any ideas ? Could anyone with a stock floor shifted dart take a measurement from somewhere on the dash or floor to where the shifter handle is ? Or is anyone has a pic of a floor shift car with the console off so I could see where the stock type shifter would be.

Here's pics of both possible installation spots. Both would be comfortable enough. Note: the seats are all the way to the rear right now, which is were they will be when I'm driving.

First a pic of the rear position.
and then a pic of the more forward position.