we used my messed up set (the ones in the pics) and the stock ones of off ben's taco (he had replaced them w/OME 3" springs)
i had a 1.5" AAL by pro comp or rancho (cant remember) and used two springs out of the messed up pack. (kept stock shackles)
we cut one of the longest ones to fit in between the longest and 2nd longest of the stock pack we were gonna use for the truck. then same thing with one about mid-way through the pack, the AAL was on bottom... we didnt use the overload spring 'casue i had the ride height i wanted.
we had to test fit 3 or 4 times with different springs to get the height we wanted but it was a pretty easy job.
i think the ubolts were some leftovers i previously had on my '97 taco and they worked for us (they were not the stock ones) and i picked up new center pics for a few bucks. you can find stock spring packs pretty easy, most guys doing SAS's will give them away.
you'll need a C clamp when you take the spring packs apart.
we thought they'd be stiff but they weren't.... they rode/flexed really good for a $0.00 fix
if shane remembers anything i forgot to mention i am sure he will chime in... he helped me put the pack together.