Crazy alignment problems

So I finally have a day off where I can work on my car again. I’m still having the same issues as before.
I’ve centered the steering box (it was way off center)
I’ve readjusted the tie rods about 10 times just trying anything to fix the problems. I did it on reasonably flat loose dirt because I don’t have any smooth pavement or any steel plates as some have recommended.
I have basically maxed out the camber adjustments on the UCAs but it makes NO difference.
I drive it through the yard and around the driveway after each adjustment but the front end just keeps going way down and a ton of negative camber and toe out.
I’m pretty convinced that this Performance Online brake and spindle kit are f*cking me.
After I ordered and received kit, I realized that the stock size ball joints were way too small for this kit.
I called them and they told me that this kit requires their upper control arm and ball joint kit.
I was going to just return the brakes but after the shipping costs from Georgia to California and they’re restocking fees, it just made sense to order their control arms and ball joints.
Unless one of y’all can magically figure out what’s going on with this sh*t, I’ll probably just keep the car parked until I can get some real brakes and suspension.
Just to remind everyone of the parts I have,
ALL bushings have been replaced with poly bushings,
QA1 k-member,
Stock LCAs,
Stock strut rods,
Stock manual steering box,
Stock center link (it was in the car when I bought it so I assume it’s the correct one)
Moog tie rods and ends,
Moog pitman and idler arms
POL UCAs, Lower ball joints, spindles, and front brakes.
Here’s the links to the POL sh*t
1960-74 MOPAR-Dodge-Plymouth A-Body Tubular Upper Control Arm Kit with Ball Joints

1962-74 MOPAR, Dodge, Plymouth Disc Brake Conversion, Stock Height Spindles

Thanks everyone.