I was going to go for a mount similar to that however because I own a few bikes and switch between them all the time, I wanted a mount that I could just hook on the bars and go. I dont want to have to unscrew mirrors all the time, It gets a pain in the butt sometimes.
Im now retiring BumbleBee as my "workhorse" she has been replaced by a brand new TGB125. Im keeping her and will still be doing the 12v install etc just won't be riding her as much as I used to. The decision to do this had to be made, at 19,800KM shes showing her age and is becoming a little unreliable. The TGB was at a good price by the dealer, I got trade price on it and they have a good reputation within the courier industry over here.
Ive fitted the old grab rail back on, have a footboard and belly panel on order. Ive got LED strips waiting to be fitted as a bit of a "something to do when bored" project.