Restoration of Trashed Batmobile from Batman (1989)

I received this Batmobile from based on the Tim Burton’s Batman movie. It was basically trash, nothing worked and there was a lot of corrosion and other damage. Many parts were broken and the car wasn’t even connected to the (previously) wired controller anymore. Mary of the screws were damaged or missing which could mean somebody tried to fix it but gave up. I disassembled everything to assess the damage first. Nothing was working. I started by testing the motor. With multimeter I figured out the coil ins