I did my own tail chop. Admittedly encountered a lot of small challenges, but in the end it turned out great. If I were to do it again, I would NOT recommend mounting the turn signals in the tail piece. Instead, buy an aftermarket turn signal bracket. This one fits the existing holes on the tail piece without modification.
https://dieselmoto.com/collections/x...ag-bracket-kit
Here's mine.
buell 2009 tail chop.jpg