Leaf springs need advise for ride height

Looking for advise on how to pick the right spring for the ride height that I want to achieve.
Have searched found a lot of info on who make what but not much on figuring ride height.
ESPO does + 1 & 2, stock and - 1 & 2. General does stock and plus 2.5. Hotchkis are 1 inch lower but read they could be too weak? Dirt track springs??
Want to keep the lowered look that I have (flat worn out 40 year old springs) and have a good handling spring. Have PST 1.03 torsion bars and Bilstein shocks. Rear tires are 25.4 tall
Here is a picture of the current ride height that I'd like to stay close to.
Thanks for the help.

orange car.JPG