So I got a used cover off Ebay.
It was a bit scuffed and battle scarred. Had it refurbed.
Fitted it and bingo, everything is normal. Bike fired up straight away and all the issues around excess noise has gone which confirms that I've got away with purely cosmetic damage.
Bought a new front fairing and had it sprayed along with the damage to the rear fairing patched up.
New indicators, wing mirrors, bar ends, clutch lever and decals to be fitted and fingers crossed she's as good as new.
Only slight issue is the front fairing has been sprayed completely silver on the inside and I'm not sure I like it.