You gotta admire ingenuity, and its always good to see a new solution to a problem. But...the way you've painted that T piece suggests you intend to rely on it for a while, which I would respectfully suggest is a BAD idea. Plastics get brittle over time, and that will get added knocks and vibration from the ride. You do not want the stand to hit your chain when at speed, if it breaks your wheel could lock and the consequences of that don't bear thinking about. Do yourself a favour, and fabricate a steel bracket that you can bolt on or weld in there. Just my opinion.