Trans Kickdown Linkage Guru Sought

Looking at the four drawings:

There are 3 different upper bellcranks (identified as part #6)

Looks like 4 different Intermediate Transmission Rods (part# 10)

2 different Carburetor Rods (part #12)

And there are other differences, but those three parts are the ones I've adjusted so far. I have the short Intermediate Transmission Rod, and my upper bellcrank is not shown in these drawings.
That short rod is why I can only adjust the Ball Socket (part #2). It's sandwiched between the engine, the firewall, and the throttle cable.
You can see that the different bellcranks have different angles between their arms. What angle my upper bellcrank arms have is a mystery.

It's break time! I would appreciate any feedback, opinions or observations anyone would care to add. Thank you.

ATB

BC