Quick Question: Going back to springs from airbags

[Street Lethal '72]

I bought this '72 with air bags and rear bolt in C notches. The airbag system was installed poorly (speaker wires/zip ties) and the rear bags leak (can't find it). Anyway, I want to go back to a spring suspension. I am curious, in the rear, if the springs will just pop back in, or if the spring seats are now missing. If anyone who has installed rear bags, or these bolt in C notches can tell me what to expect, that would be great. Just want to order everything I need at one time, and I have no experience here.



*I know this pic shows the airbags inflated, but that only lasts about 5-10 mins. Also, I have no interest in repairing the bag system, my brother in law is getting them.

Thanks!