What?
AE86 engine and gearbox mounted in AE71 using factory brackets and mounts will put the shifter through the hole in the ke70 trans tunnel. Is that what you're asking?
The position in relation to the driver? I dunno but I can tell you ae71 t-50 shifter is different to ae86 t-50 shifter. IIRC, I used the k-40 shifter in my t-50.
If you're asking how far away the hole in the trans tunnel is away from the clutch pedal or steering wheel or firewall or some reference point, I have no idea.