I have a Geelong Carbon Craft rear wheel hugger on my zx14 and Phil says he will make one for the GTR1400 (Concours 14) if the demand is there. They do great work and also do carbon fiber and plastic. www.geelongcarboncraft.com.au
I am hoping Skidmarx in Dorset UK will soon make a hugger for the GTR. The one they do for the ZZR1400 (ZX14) is nice.
and they do it in Carbon for £119.00 so should be a similar price for the GTR Hugger.
It will just take time for manufacturers to get their acts together and start producing goodies for the GTR in the UK.