I would rather recommend an Arts and Crafts Market.
This would be a Flea Market type of Business where only home-made products are sold.
I think you should easily get an unused parking lot or similiar space or even a portion of it.
You can charge the Exhibitors a basic daily fee to exhibit their products and goods.
They will bring their own Tents, Awnings, Chairs, Tables etc
This is better and easier to control than charging a percentage commission.
Your basic expenses will then only be advertising.