with the crack, any damaged to the carbon fibre wave? if not, the panel beater should be able to fix the crack, re-rasin and do the clear coat same as the scratch, he can rub it and put the new clear coat
if the carbon wave damaged, no way he can fix it without painting new colour in that area.. if u have to paint, paint around the edge of the bonnet and blend it to the centre of the bonnet and leave the centre section for the carbon fibre look..
look for 2GU UP's car in the photo section, he paint the bonnet and leave the centre section for carbon fibre
hope this make sence to U
cheers