Which Lokar to Buy

[luvbowties]

I'm pondering moving my gears to the floor on a '66 with a STRONG 700R4 passing torque to the diff'l. As you all know, it can be hazardous upshifting manually with a 1974 shifter on the column. Plus, my engine is still pulling strong well beyond the 6000-RPM-point, where my governor will automatically shift. I'm hoping for a more positive feel of control when manually shifting, and I like their looks AND their lockout design. BTW, I've never driven a vehicle having a Lokar shifter in place.

My truck has a bench seat, for all practical purposes--actually a 2005 half-ton Chevy, 2-bucket-plus-center-section seat, with no space at all between the 3 components. The center section will come out by itself, leaving a 2-bucket-seat-look; I'd prefer to not do this if possible.

From those who know gobs more about Lokar than I, which is close to zero, which 1 of the Lokar units should I get? I want positive feel and control.
Thanks for your help and ideas.
Sam