I definitely wish to keep pricing close to the Calmini set. A lot depends on what the shop says after they get my bars. I won't rule out using the Energy bushings, but more than likely the new bars will be larger diameter. There's a sway-bar formula out there that dictates an increase in stiffness proportionate to increases of diameter, but as I understand it that applies only to solid bars. Tubular bars have different properties.
In any case, the impression is that enough are interested to look into a group buy. Once my bars are shipped off in a couple weeks and I hear from the shop I'll post all the info including finishing options such as available powdercoat colors. Stay tuned!