Someone had a link a few months back to a place selling them for $202+sh. Not sure what all that included.
I have the 2011 RT shocks on my GS without the Evo Sway bar.
They're set to 3... With me (270lbs) and my usual baggage of too much stuff (tools, electronics, 14 pairs of gloves...) I love the difference.
The roll resistance is very nice, I no longer feel like it's putting all the weight on one tire in hard corners.
It is a bit more twitchy at lower speeds, but maybe that's the new dps... It's great at higher speeds.
3 might be a bit too stiff... I don't mind a harsh ride, that said, it does feel like the control gets a little light on rougher roads. (too much bounce/hop) I'll try softening it up one and see how that goes.
Right now I'm not sure I "need" the sway bar upgrade... of course, I "want" it anyhow
The parts you need are (2 of each per Spyder)
14 AMORTISSEUR *SHOCK 706001059 $79.99
15 BAGUE REGLAGE *ADJUSTER RING 706001061 $10.99
16 RESSORT *SPRING 706000676 $39.49
17 BUTEE RESSORT *SPRING STOPPER 706200881 $7.49
18 CAPUCHON *CAP 706200785 $2.49
19 BAGUE *RING 706001062 $2.49