Check out 04OFF's bar. He did a quarter chop. Having seen it in real life a few times, I think it looks great.
It's a prick of a job to get decent 90deg bend out of them press benders. Can be done but a pain. Have a look at jd2 benders. They are great. Not cheap but can be on sold once your project is finished.
Interested to see how this goes as this is something I have been thinking about doing.