Spring Help

Orriginally I installed a 2" BB on my 93 XJ. My rear springs flattened out so much that I opted for old man emu 2.5" leafs. They leveled the back out and ride great. Now I notice my fronts are sagging alot. I would like to go higher for cheap. I am thinking either a 3.5" rubicon coil in front or a 3" rusty's coil with a .75" spacer and a block in the rear to adjust as necessary.
My question is- Is there a spring out there that doesnt sag??? It would have been much easier to have just installed a full kit from the get go, but now I have to make something out of what I got.

salvage yard F150 coils give 3.5 -4.0 lift

I have been looking for this answer for some time.... I see what to do for the rear but never saw anyone talk about the "cheap" front end bb. What year F150 coils do you need for this boost?

thanks
JC95

TRW CS8228 is the part number for the front coils.
They're around $45 from advance auto parts.

You will also need a set of 1 3/4" spacers.

Check out http://www.lunghd.com/Tech_Articles/Suspension_Steering_Axles_and_Brakes/Budget_Lift.htm