I recommend to print both bowls with the flat side down. You may need to sand the posts on the “top disc and posts” STL because they will probably be a tight fit.
I modeled the magsafe charger plate to fit this one: https://a.co/d/8yQnzZa
The author remixed this model.
I replaced the laser dish with a special hole to accommodate a magsafe charger and made room for the cord to exit. I also angled the model to sit upwards a bit so the attached phone sits more at a usable angle when sitting on a desktop.