Is there any hope for glTF support in a future update? Or potentially .blend support so that we can import the model and materials from Blender? That'd be amazing, though I'm sure very complicated.
Please don't hesitate to contact me on discord so I understand what you need exactly. Maybe I can do something before migrating to Godot 4 (I absolutely don't know when it will happen), and this could help me anticipate future glTF related features.