The only bolt-on one I know of is from JMV Concept and it's more of a touring fairing and would require you to scrounge up a few parts from the S model to complete.
The JMV Bandit GT fairing with lowers:
Same fairing without the lowers:
They have a similar one for the '06 (and I'm guessing the '07 will be soon to follow):
(They also sell lowers that fit to the OEM 2G & 3G fairing.)
IIRC, someone here adapted GSXR bodywork to a B12, but this would require some fab work.