I think there was a couple of people making these was going to see how it was coming, couldn't find the thread to see if there are any updates.
I had made 2 versions, one for up, and one for down. Everything was fine except the exhaust side creates an interference issue. It would seem that moving the brackets back, at all, is an issue. Because of the curve of the exhaust right at the foot peg, you need to drastically alter the position, enough that it makes it uncomfortable. This isn't to say it can't be done, it just means altering the position of the STOCK rearset is tough. I am going to try something a little different and it might work...just this time I will start with the exhaust side first.