I have a black '89 SHO.
You list "cables for mtx cable shifter - $20 ea (have 2 of the same one)". I need the Front/Back cable, is that what you have?
The L/R cable terminates with a small off-white socket at the stick shift, the F/B cable terminates with a large black flat socket at the stick shift.
Also interested in
"hardware to mount Gen2 console in Gen1" - can you explain what this is?