I had mine plastic coated, but paint or powder coat may work better.
The two rear mounting bolts for the luggage rack also connect the antenna mount.
Side View
The antenna is not touching the top case, it's just the angle of the photo. It's nothing fancy, but it works.
If anyone wants to make one of their own, contact me and I'll give you all the info.
Rear View
Some of the other pages show pictures that you can see the antenna mount also.
Without Top Case
