I don’t think I really understand anymore what you are trying to achieve, sorry. If your goal is using your Bluetooth headphones with vorpX, all you need to do is unticking the ‘Use built in audio device’ checkbox in the config app.
Not sure what all that other stuff you are doing is meant to do, for using your Bluetooth headphones with vorpX you don’t have to do anything else than unticking a single checkbox under normal circumstances.