Demon rear spring height

Still working on some details on my 71 Demon 340. This is a 99% stock/original kind of resto car, not a racer (my 72 Demon is for that!). When I got this car in 1984, it had "helper" springs around the rear shocks ("coil-over" shocks) apparently to assist the sagging rear leafs. It's time to fix that but I have no way to know what the correct stock height would be for this car. I've looked at lots of internet pics and can guesstimate what they should look like. But with the knowledge and cars on here, I thought I'd ask for some help. I'm going to buy new springs/shocks for it and want to get the right ones the 1st time.

Would anyone be able to provide a measurement from the ground to the quarter panel right at the center of the wheel/axle i.e. right at the tallest point of the tire? Mine sits right at 26" with a P245/60R14 tire, clearly too low as the ground clearance under the car is not much (and I don't like the looks of it). I jacked it up and think it looks much better at about 27" but don't know if that's a "stock" height or something taller or ?? I need to know what "stock" height would be to decide if I want stock or +1" replacement springs.

So if anyone can put a simple tape measure by theirs and tell me the tire size and what that number is, I'd be most appreciative!

My 72 Demon is at 29-3/4" with its CalTracs, split mono leafs, and 28.0/10.5-15W slicks. That one sits WAY up in the air so I know that is way too high!! Lol!! Thx for any assist you can provide!
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