I like it. I'll post what I work up when I get started.
There is one really nice example that showed up on here a while ago. They are slightly more "rear set" than what I need, but they were done beautifully.
Here is the thread:
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1480200232/0 
The more I look at them, the more I might be willing to compromise on my peg placement. He reused the stock shifter and brake pedal in a simple yet effective design.

I was planning on doing something similar and mounting a set of XS400 pegs that will get my feet a little more forward. But it will complicate my shift lever placement compared to the example above, but I'm hoping be able to use a lever straight off the shift shaft in true mid control fashion. I also have a XS400 rear brake pedal, but it won't be a simple to fabricate at the example above.

For the bracket, I found that you can use a set of motor/battery box mounts (on the right in pic below) turned upside down with just a little bit of bending.