Hey all,
I spent way longer at this than probably needed to come up with some super easy and also not break the bank options on springs to assist with the overly large gap between the concrete and the frame lol
Both of these provide a nearly identical ride application with the lowered height options, they have a 3.5" base inner diameter which will require modification to 3.68" for install (most spring shops will bend the base for like $10) All in you get the reduced height and correct ride for about $100 at current pricing.
First Up (the ones I installed)
Mustang II coil springs 375 pound rate 13.5" uninstalled height (~1" Drop over stock)
Second Up
Pinto (unsure of the year) 400 pound rate 11.5" uninstalled height (~2.5-2.75" Drop over stock, you might be cutting bump stops to make this one work out....)
Hope these save someone some time in the future.