Nopi online sells a VIS(i think) kit called the "Invader" but is really the shogun as we know it, the erebuni shogun and style 44, and they sell all three by compleate kit or by front lip, side skirts or rear. Note however the VIS kit's rear is the buddy club rear.
http://www.extremedimensions.com has a couple of front lips, invader and buddy club, and full kits as well.
It's not like these are unique kits, but atleast we have other options, then erebuni, bbk, and tc spoilers, andy's and corksport. I think
http://www.extremedimensions.com is having some sort of sale for a mx-6 something or other, so at least these two other sites are worth a look!