Hi mate you can get the brakeline cover for about 15-20 quid off ebay
I wouldnt bother with the carbon heelguards, theres a guy doing stainless ones with the ducati logos etc laser cut, look damn trick but unfortunately he doesn't do em in the corsa shape.
I can understand why you wouldn't wanna go near Casoli, but you have to admit its pretty hard to f*ck up making a clutch or sprocket cover - they have a magnesium cover I'm pretty tempted by.
Rideheight bar will get chewed, but the thing you REALLY wanna worry about are the two ******* nuts on it, they are made from finest Italian cheese and disintegrate at the mere mention of a spanner, you can get a replacement one from
www.TPOparts.com