Ladder bars/stock frame/rear coilover length?

Thank you. I was looking at the Summit Racing unbranded ones and thought a 10" compressed, 14" extended would be close. Nice to know someone has done it. Thank you for replying!
I have these on all 3 cars..they are relabeled Qa1 shocks...
JEGS Performance Products 64905: Double Adjustable Coil-Over Front or Rear Shock Compressed Height: 11-5/8" | JEGS

I use adjustable mounts on the lower mounts...also use 110 lbs springs......you will need to weld new upper shock support tube across the frame rails.....
I ran a ladder/leaf setup on my 74 Swinger. I also moved the spring back one inch for clearance. A little different from coil over, but, I hole sawed holes in the trunk floor and flipped the upper shock mounts end for end.
With the backbrace and 1" setback, my upper mount will be farther back - lower on the frame. Hoping the shorter shock will work.