Nathan,
have a look at the Workshop manual at page 60, under section 3.7 "Adjustment Throttle Housing". You'll see the throttle body vacuum pickup points (marked '2'). They connect to the stepper with 3 individual tubes. I made up a brass tee piece, cut the left side tube at an appropriate point and fitted the tee. The Scottoiler uses no air flow (except on startup), so it will not bother the engine tune.
I mounted the oil unit to the left of the steering head. On page 114 of the manual, the bottom picture shows the left airbox conduit. There is a tag on the frame (top right hand corner of the picture) that is used to secure the conduit (and the fairing). I made up a bracket that used it to mount the oil unit. It fits neatly out of the way of the left fork tube. A bit hard to see the oil level, but works ok for me. I can adjust it as I ride.
I routed the feed tube under the radiator hose, above the rear fork pivot, but the heat and slight pressure closed it off. So use a little prudence when you work out the route. I think I ended up using a piece of copper tube where it was going to be hot.
I'm pulling her apart over Easter (to add an extra couple of battery cables), so if you want pictures, let me know.