Vin tag decode help please

I thought V1X is a black vinyl top. Your car has a painted top. Was the vinyl removed and then painted?
I do believe so.
Certainly looks like it has vinyl top chrome trim on it with the chrome drip rail mouldings removed, then painted the top black.
Exactly.
It is a two-tone paint car, they used the same moldings that vinyl top cars did over the mask line. (Top painted first, then masked off for lower body color)
I have never seen that. Painted black top from the factory in conjunction with the molding for a vinyl top to make a break line for the other color. This is correct in what your saying?

I’ve seen guys purposely do this since vinyl tends to let water in and rot the roof.
The second TX9 is for the upper door frame paint on the inside of the doors.
Upper door frames are indeed black.