Hey there, I’ll try to explain:
What you see on my gen3 is the complete SW motech luggage I kept from my gen2. The Gen2 tail is wider so I had to buy spacers for the front mounting points of the top rack. As you can imagine, that meant I also had to order longer bolts. For the top rack rear mounting points, I welded a piece of flat bar, reshaped the end of the mounting points and drilled new holes. I also had to order spacers and longer bolts to make sure the rack cleared the fairing. All these bolts and spacers are included when you buy a gen3 specific top rack but, it was just cheaper to source my own parts. As for the side racks, all I did was tweak the “legs” on the racks by clamping them on my vice until the two top mounting points lined up. For the foot peg mounting point, I took the brackets that come with the racks and are permanently attached to the pegs and drilled a new hole so the mounting points for the rack was pushed further back. Lastly, I took the bar that also come with the racks and goes across the license plate and cut the two ears for the the rack’s optional lighting so I could flip the bracket upside down.
Hope this helps. I can try to look up links for what I ordered but, that’s the easy part. What took the longest was modified the top rack rear mounting points and tweaking the side racks legs just enough to line up with the mounting points.
Let me know if you want more details. I was able to accomplish this by picking another members brain that had already done this mod.
Miguel