Garage Wall Parking Aid

I have a super tight garage (10cm on each side of the car) and I was thinking to create a 5 meter line out of 100 Ultrasonic Rangers to transmit an outline of the car’s distance from the wall during the parking procedure. I am a programmer and can figure out that part but I am not sure about what hardware to use to connect 100 rangers to the Raspberry Pi.

Can I please get some guidance?