Stu,
I think they actually were TJ FRONT coils.  The rear coils are too large in overall diamater, but not big enough in wire diameter.  I need to tell her to update the webpage with the correct ones.
We didn't cut the coils at all.  We had the bottom coil closed off by about .5 an inch.  (pinched together a bit in a vice, be carefull doing this or you'll create a missle.)  This made the coil fit the bottom cup better.
I can't quite say how much lift it actually provides from a stock tracker.  We've made so many different modifications to make this nearly impossible. ÂÂ
We do run that HUGE and HEAVY rear bumper, and it's a  4-door and it provided enough lift with a 3 inch body lift for 33s.  I just measured the fender opening and its 39 inches from the ground.  So maybe you can take in consideration all of those and get an estimate. ÂÂ
They have been better then the 2 inch Calmini springs.  By better I mean that they seem to ride softer and firmer at the same time.  They seem to have a better spring rate for what we run then the 2 inch Calmini inches, with 1.75 inch spring spacers. ÂÂ
We have recently upgraded from stock Jeep TJ front springs to 2 inch TJ lift springs from BDS.  We used these to remove the spring spacers that we had been running.
So 2 inch BDS lift TJ front coils, 33 inch tires, 3 inch body lift, heavy rear bumper, 4 door tracker and it's 39 inches from the ground at the top of the fender opening.
Good luck,
~Nate (and Heather)