The idea behind the 69 'cuda package was to make a low cost high performance Barracuda, like the Road Runner. A56 is 340. A57 is 383. A13 is 440.
About 15 years ago I parted out an A4 'cuda340. This silver car I parted was a 340, 4 speed/ 3.55 SG, black deluxe bucket seat interior w/ console/ manual fast ratio steering, and manual disc brakes. 90% of the right rear quarter was torched off, the bottom was severely rusted, and the engine had water in it. After I got it running well enough to drive the 20 miles home, I got 2 stop signs away from my house and the front end went BANG! The T-bar anchor decided to let go because of the severe rust. It was pretty obvious the car had sat outside in a field for a long time and the entire bottom was rusted. I have another long term project 69 A56 4 speed, 340, 3.91, bench seat, rallye dash, manual drum brakes and steering FB but that's another story.
Looks like you need a hood and the little scoops. The deck lid panel should be argent like a standard B-cuda but with black grilles like a Formula S. (the grilles were molded in black, not painted) The scoops are re-popped but the grilles (in argent or black) are extremely scarce. Thay are mostly all plastic and prone to cracking. The stripes and the 'cuda 383 fender call-outs are available.
There used to be an on-line registry for the 69 'cuda cars but it's inactive now. Chrysler Historical said there were 378 total 'cuda 383 FB's built in 69, no breakdown of trannies.
Good luck!!