Need measurements for 03+ Murano 2WD Springs!

[Gene 3.5]

If someone could possibly help me with a small conundrum that I'm going through. I'm planning to run "helper air bags" from a 03+ Murano on my 02 Altima to aid in rear squat (drag setup) From my own research the rear suspension on the Murano will fit the rear suspension on the Altima since both are running on the exact same frame structure. So I could safely assume that the springs in the rear would have the exact same diameter. My problem is that I don't want the "helper air bags" to lift the Altima up beyond what's normal. The reason why I think that's the case is because the Murano is an SUV with a much higher ride height as compared to the Altima. I don't know if that's due to suspension design or if that's due to the size of the spring itself. So if someone here has a NON COMPRESSED and UNINSTALLED rear spring that they could measure the height of.. I would greatly appreciate it!

If possibly could you measure from the very end of one link to the end of the next, unless of course they aren't aligned them from the upper top most coil to the very bottom coil.

Thanks!
Gene