| Hmmm, I'm afraid you're out of luck looking for cheap carbon bits for the ST.
I think you might have meant your front mudguard from the SS would fit? but the hugger won't.
Problem is with ST's is that they're not a big volume bike, so apart from exhausts, not a lot of aftermarket companies make goodies except of course the DP bits you've already seen.
I've been quite patient with mine and picked up bits of secondhand carbon from the market place on this site and good old eBay. I'm trying not to spend too much on it right now, but would be tempted by a carbon front mudguard - fortunately, these pop up quite regularly on eBay, cos almost any mudguard will fit | 
Jools
Hybrid Mode
