Hi. I wondered how you got on with the Scottoiler installation? I have fitted one to my 2017 DL650AX. I could not see it working in the position suggested on the S.O. website so fitted it behind the right hand side panel. This took some devious drilling through the plastic moulding and the scottoiler holder but holds the resevoir at a better angle while still allowing relatively easy filling and adjustment.
I cut into the right hand vacuum hose on the airbox which seemed to work well and , yeah, about an hour and a half to get the tank off! Whole job took about 4 hours.