Hi,
Hope EdYouKateShaun doesn't mind me starting off a new thread as she was searching for a Tailcrate but I thought that if I started one with the name in the title it will be easier for people to find in the future.
And all the credit goes to HerRoyalNotness for finding the US supplier (there was a link to a UK supplier on the Rightline website it was just way, way, down after all the US companies)
So here is the UK Supplier link:
TBR Accessories - Cargo Saddlebag
The Cargo Saddlebag is a rugged luggage Carrier that rests on the back of your vehicle, suspended from your luggage rack so you don't need a tow bar and they are reduced from £178 to £133 at the moment!