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In-built wardrobes

I have a bedroom (possibly two) that I would like a wardrobe built in. I have attached a photo of similar work that i have found online. Double sliding doors with mirrors on either side, along with space for a large TV and a shelf and some drawers. Does not have to be exact as per below. Possibly job to be cavity, then install of pre purchased Bunnings cabinetry. Would like the option of having the doors closed while still being able to see TV so two separate units on either side would be OK too. Open to ideas.