need help in day2 restoration

[black69]

I lost the blue helper coil springs that were under this car to keep it from bottoming out.

I got the rocket wheels and tires ready to go back on it.

Air shocks on it (yellow, I think monroe) do lift the car.

questions are, do I and where do I find the right helper coil springs to keep it up? and is that the best way to raise the back end and have it ride as good as it could.

any advice appreciated

I am tempted to have the springs re-arched, or talk to eaton spring in detroit to get new leaf springs with lift built in. Eaton made springs for me once (55 chrysler C300 hemi) and they were perfect and raised the back end.