What will it take to make two Servo Sub Kit bass towers with five woofers in each tower?
I envision a tower together with a pair of NX-Treme, where the bass towers have the same height as the NX-Treme, and with the Rythmik amplifier built into the base.
To achieve this, I envision a tower with five woofer elements in each tower. That way, the tower does not become too high, and the base can be adjusted in height so that the height of the tower is exactly equal to the height of the NX-Treme. See photos for illustration.

(Images for principal illustration only)
The reason for this project is basically only aesthetic, it simply looks very cool. A pair of Servo Sub Kit 5 will in itself be more than good enough.