You think too big... Unpiloted planes are great to move small cargo loads, leaving out the pilot and his/her seat gives another 100 kg of cargo capacity. So I would see potential in the small mail-run business or as delivery service (10 kg cargo load directly to the front lawn).
If you want to transport people, you need a cabin, probably pressurized, and facilities (galley, toilet). Adding a pilot is like adding a dedicated chair and some flight controls.