Wow, that's a lot of bands for a guitar pedal. Probably wouldn't fit into a normal bmp box if just replacing the original tone control is what you had in mind.. Probably wouldn't use all bands anyway since the bandwidth of a guitar is much narrower than "normal" percieved bandwidth. I think a common James tone stack does a pretty good job in a big muff.
Anyhow, if you're into para EQs check out this article at geofex about that stuff http://www.geofex.com/article_folders/eqs/paramet.htm
i agree that it could be interesting to try a para EQ with guitar, but i think that it would be better to make a separate EQ pedal for that and maybe settle with 3 or 4 bands.