i bought my bars and fairing used, at a swap meet for $45, but then the Q Towers were $119, Q3 clips were $25 for 2, so $50. Then, the actual snowboard attachment was $60. Since i park my car on the street, i also bought a 6 pack of SKS lock cores which ran me $45.
So total for mine was $319 before taxes. so after taxes somewhere a little under $400.
Brand new bars are about $30 i think, and the new fairings are $45, so that should give you an idea of a price range.