I did it tonight! :dance:
Finally got to swap the trailing arms. Didn't take a drive yet, but I am sure it will be nothing but better. The old bushings were totally toasted, and I could hear a small clunk when moving it by hand (I think they were stock with 125K miles...).
Will now look into swapping the wishbones and the other control arms, and then get an alignment.
Thanks to everybody for their advice