Thanks for all the replies.
I appreciate the help.
Since the car can’t be driven as is, I am committed to spending some money to fix/upgrade.
I am ok with switching the rear calipers side to side and buying a new MC. I just don’t want to throw good money after bad, if this setup is always going to be sub-par, then I think I would be better off replacing the whole thing. I guess the rears need to be switched or replaced either way. The front rotors seem pretty small for a 4,000-pound car.
At some point I want to be able to take my little girls for a Sunday drive, and it needs to be able to stop.
The wheels are 16x8 torque thrust style aluminum wheels. The tires need to be replaced, and with the lack of appropriate 16-inch tires, I will likely be going to back to 15-inch steels that I have in the garage.