Not doing a Hemi swap, but changed my column.
Details:
1968 Barracuda Flaming River Steering Column
Column is 2" (50.8mm) diameter and sticks out about 3" (75mm) from firewall. Not sure how this compares to the stock column. I am off work from 10/10 to the 17th. During that time I will be doing some more precise measurements as part of my project. Let me know if you need more information.