The scarebird brakes are a somewhat bolt on, you will still have to do some engineering , brake lines getting a new brake master cylinder fit up, etc

more info on that

https://butchscoolstuff.com/brake-boosters-master-cyl-disc-brake-conv-kits/

It will low mount under the floor of the car

The lips of fools bring them strife, and their mouths invite a beating.Proverbs 18:6