Just did some looking around, just the bottom piece, which is a special carbon piece for the hp4, it's not the same as a HP lower fairing, the hp4's is a lot longer, well anyway it's over $2500 alone.
So there is close to $5k just in carbon on the comp hp4.
2010 Mineral Silver S1KRR-Sold
2012 Motosports. S1KRR-Sold
2013 HP4 Competition #0373-Sold