THANKS Guys for your input...believe me I truly value the comments from all three of you.
Right now, I intend to put my "OCD" on hold until I touch base with Jay to get his thoughts. Hopefully, I will be able to reach him on tomorrow.
As Carl noted regarding his "rathers", I too, personally prefer controlling the shifts manually but the First Lady or one of the "kids" (while they are home from college or here for a visit) might decide to drive it. I was trying to leave the interior of the '73 Mach 1 as originally looking as possible; hence the reason for the stock shifter. At this point, I have put quite a bit of time and treasure in acquiring all the transmission linkage (didn't realize how much of those individual parts were so difficult to find for a C6) but if there are too many issues with the change, I might just go to an aftermarket shifter.
As an aside, I actually have an automatic valve body in the C6 (Broader internals) for the 472 that I have in the '73 Grande. When I had that one built, I gathered 2 pieces of each linkage part to try and anticipate the requirements for the C6 that is behind the 545 that has gone into the '73 Mach 1. The original transmission in the 472 was a column shift, so I had to change the shifter arm on that one as the arm was pointing in the wrong direction. For this Broader unit, there was no shifter arm at all as it was built in anticipation of use with an after market shifter, according to Jay. I didn't know this until we installed the motor and transmission into the car and started to hook everything up.
Anyway, like everything else in modifying these cars, this has been a learning experience for me, so again THANKS for y'all inputs.
Do the right thing!