47-55.1 steering column location

[DanJC]

Hanging the column in our S10 swap and have some questions...
Going to center it between the gauges. Someone had at one time put a sheet metal floor in the cab and the lower column mount (where it goes through the floor/firewall) is not there. Can someone post an approximate measurement off a known point (i.e. the dimmer switch) as to where to locate the hole? I am certain just setting the column in there in a comfortable spot would get me where I want to be I would just feel better knowing where the original was...
Thanks-