Wanted Polk FX50 or FX30

I'm looking for a set of Polk Dipole/Bipole surrounds, the FX50 model or FX30 model. I believe these were replaced by the FX3i/5i which are in stores now. If anyone has these, especially the FX50 models, I'd be willing to trade a 2 year old perfect pair of RTi70 floorstanding speakers straight up for them! I'll also buy them outright if someone is selling. I don't want the new FX models because I want them to match the rest of my system.