Replacement floor pan options for 66 Barracuda with 727 transmission.???

Several years ago, someone on here put a new AMD floor pan for a 67 & up A body into an early A. Best I remember, they had to trim the outer edges by the rocker panels off just a little, then had to make the top of the transmission tunnel at the firewall match up. I don't remember if the tunnel fit the top of the hoop of the torsion bar crossmember exactly, but if there was a gap, you could splice a later upper hoop to your early A torsion bar Crossmember to gain a little clearance for the 727. I've put a few 727's in Early A's and it is a tight fit in the top of the crossmember!