Originally Posted by northwind

Pers'nally I still reckon there's no better way to do it than the official one, it's not exactly cheap- £110- but requires absolutely no modification, cutting, headscratching or similiar to fit, is entirely road legal, has sensible indicator mounts, and is coloumatched. I've not seen another tray that looks good, fits well and is colourmatched for less...

Mine has cracked at the front, mind, so I'd recommend you use rubber washers and larger metal washers down there to spread the load a little.