Honestly, You're better off fixing what's broke before you start modding. It looks like to me like tweety said that your strut is screwed and maybe the bracket is bent/broke on the swaybar. the RB sway bars are hard to bend...
My money is also on a bent/torn up Lower control arm. I promise you that if you dont replace it, that ball joint will eventually start popping like a mother f'r.
Since that side took the impact, go to
www.rockauto.com and get a Lower control arm, spend the $100 and get the strut, swap the stock spring out, and replace the sway bar links (both sides, they'll probably both start clunking if they haven't started already).
When you do the lower control arm, the bolt that goes kind of into the body under the passenger door (it actually goes into the engine cradle) ....do it with the RF wheel on the ground, full weight of the vehicle on the ground. if you dont, you will strip the s*** out of the bolt and possibly the threads for the bolt as well. I've made that mistake before.
the strut is easy peasey to do on these cars, takes me about 20 minutes per strut.
1. take rear control arm bolt out
2. take strut off
3. take horizontal control arm bolt out
4. remove old control arm....
5. reverse order.>>>>>>>>
That will guarantee at least your ride height will be corrected.
worry about the sway bar later...get the ride height situated, do the alignment, make sure it drives normal, and thennnn worry about the sway bar.