Baby seat in an A-Body?

I have a 71 Scamp and a 16 month boy. Anyone ever put a baby seat in the back of their A-Body? The little guy is obsessed with this car, I'd love to drive him around in it.

Would love to see pics of a baby seat in the rear seat, and any tips if folks have done it before. Seems like it might be hard with a 2 door.