E Body Viper Brakes - Identification Needed

Hello;
I purchased a partly done project 71 Cuda (I know, but it is a solid convertible). The owner upgraded the original drum brakes to some kit using Viper Calipers and a stock appearing one piece rotor, along with tubular upper control arms. Unfortunately I can't get any more information from him.
Photos attached. The rotor is 11.75 diameter, and has a 53118 number cast in the back and "made in Canada"
The viper branded black calipers have 20.5274.00 cast into them. There is no identification on the adapters, and none on the upper control arms.
The owner was technically savvy, but the car also sat for several years partly completed. I can't find anything on these components online so far.
I need to source pads flex hoses and hardware, and set this up (alignment for the UCA's is different for one I am sure).
Any ideas what I have? Any advice? I am taking the car back to a more stock appearance due to the rarity, but stopping is nice too.
Thanks for any help.
Mark

I don't recognize the upper A arm but the Viper kit is an AR011. Not available anymore but you can buy the parts you need from Doctor Diff. He makes a Viper kit these days that is similar to the old AR011.
https://www.doctordiff.com/viper-caliper-mounting-brackets-for-mopar-drum-knuckles.html

Those look like the non-adjustable Magnum Force upper control arms to me.

Magnum Force B/E upper control arms