Aerostitch has probably the best price on the
Scottoiler. Larryshep has some pix of his installed on a Speedie, it may be in his gallery he mounts his directly to the chain guard. Greg(englishyankee) and I mounted ours at the frontmost attachment of the chain guard behind the right side rear peg holder. It's still easily accesible for adjustments and can also be filled with out removing the footpeg mount. We all routed our feed tube underneath the swing arm with the provided guides, it looks very neat works wonderfully.
It takes a while to get it dialed in and remember that it takes time for the adjustments to manifest so 50 or 60 mile intervals between adjustments worked best for me. Once you get it synced, remember your setting and don't worry about it. Check the reservoir every couple of thousand miles and you've got a minimum fling low maintenance final drive.