Andy wrote:Pretty sure the R6K has a different undertray, with a recess for the reservoir, which is then held in place by two large hose clamps. The part numbers for the R5K and R6K differ.

Hi Andy thank you for the reply. Managed to find some more information, my tray looks exactly like the pic attached which has the two brackets for the reservior. What I cant work out is how the two clips are mounted onto it. Either mine would require further modification to fit or im missing something. I cant seem to find anything in image searches that focus on this area in particular.