Thanks for creating a separate post. I appreciate that. Here's a run down for you.
1) They msrp at 850.00 which comes with the spinner clamps, speakers and also include the sox covers.
2) Several wake world guys on here are running them and can give you some direct feedback.
3) Config wise, You can put 2 pair on the illusion tower. Whats cool about it is the clamp direct fits into your factory locations and you still quick disconnect and can rotate 360 degrees while playing music.
Here's a couple of links to eyeball:
Shows an installation on illusion tower http://www.youtube.com/watch?v=IxpAQmzsgwA&feature=player_embedded
Shows the clamp design. It's complicated and best explained visually. http://www.youtube.com/watch?v=Tb9Oa6KfLTM
Any questions about power requirements etc, hit me up at email@example.com