Don't worry about the hardscape, you're going to need to pull that substrate out anyway and add some orchid bark and/or charcoal to it for drainage. Soil and fiber just won't drain well and it will compact way too easy. There's also not enough. You need about 4" of substrate.

You are gaining experience though, and that is the most important part


Education is the most powerful weapon we can use to change the world ~ Nelson Mandela