I have the Gen3 Coyote and Tremec TKX, with the rear shifter setup, roughtly how much space in in between the shifter at it's furthest part forward in relation to the dashboard?

this is my mockup, and have the lower dash extended - it's about 7" out from the bulkhead of the transmission tunnel
IMG_5404.jpg

I want to be sure I'm not designing something that would have me shifting forward into the lower dash