Ladder bars/stock frame/rear coilover length?

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.....
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!