auto to manual sway

[z3beemer]

Trying to do some research during my tear down.  Have gotten a lot of info here, but have a few questions;  I have a 73 Z with auto trans but will be changing to manual on the rebuild.  I have a spare engine and trans from a 72 Z. I'll be using that trans.  I need to clarify some of the wiring.  On the auto there are two wires on the left side of the trans (black wires). From what I can tell these are for the kick down solenoid and will not be needed on the manual trans.  On the right side of the auto are the four wires , 2 for the inhibitor switch and 2 for the back up lights.  I know the inhibitor wires need to be connected together so the car will start with the manual trans.  The other two wires are for the back up lights.  On the manual trans I only see one switch on the left side of the trans with 2 black wires.  What is the switch for?  As I see it, I need a neutral safety switch and switch to connect the back up lights.  Am I missing something or do I have to add another switch? Thanks in advance for your help.

[siteunseen]

A lot of good info in this Tech article.