upgrading from bilstein to 1LE

ok I have a bilstein ultra performance suspension on my 02 firehawk and i want to go to a 1LE suspension.. I fount a list to compare the 2 factory options:

BILSTEIN ULTRA PERFORMANCE SUSPENSION SYSTEM

35mm front stabilizer bar
21mm rear stabilizer bar
Reinforced stabilizer bar brackets and special end-links
Bilstein shocks, recalibrated to SLP specs.
Progressive-rate front springs 223 to 448 lb.-per-inch
Progressive-rate rear springs 97 to 136 lb.-per-inch
Rear trailing arms with 1LE bushings
1LE panhard bar
Option Price: $999


1LE SUSPENSION SYSTEM

35mm front stabilizer bar
21mm rear stabilizer bar
Reinforced stabilizer bar brackets and special end-links
Double-adjustable Koni shocks
Linear-rate front springs: 360 lb.-per-inch
Progressive-rate rear springs 130-170 lb.-per-inch
Front lower control arms with higher durometer bushings
Rear trailing arms with higher durometer bushings
Panhard bar with higher durometer bushings
Option Price: $1,850


can anyone tell me where I can find the lower control arms and the springs from the 1LE suspension? I looked on slp but couldnt find them.

I bought 1LE bushing from Sam Strano and just popped out the stock ones in the LCA and put the new ones in. 1 hour of work. stranoparts.com

For the springs, Sam may be able to get them, I've seen them up for sale on LS1Tech too sometimes.