Floor mount steering column - measurements?

[Mopar to ya]

I put in a floor shifter and am going to want to change my steering column. I am looking for a good aftermarket column with a column key. What are good columns that install with minimal wiring? And does anyone know how long to go with on a 73 Dart Sport?

 

[1970Duster]

Why not just use a factory floor shift column?

 

[Mopar to ya]

Why not just use a factory floor shift column?

I kind of like the Flaming River column. It looks better than factory, but I would use a factory if need be.