If you do. Really do your homework.
Here in the USA. I would go to the city hall in the city I would do this in. And find out requirements. License on you, your business, each game. Find out zoning ordinances, are games allowed in that area ? In that business ?
And get your own insurance. Don't depend on the location. Anyone gets hurt, place burns down and the machine is blamed, kiss everything you own away. Might be a one in a million chance. But can you risk it if your number comes up.
You work next to. Do you live close by ? Hate to have you just sit down to dinner and they call and want that thing fixed right now or out back it goes. And burglars and fires work 24/7, you can be contacted at odd hours.
I'm not trying to scare you. Just help you decide if it's worth it to you or not. Unless you plan on becoming an operator. It might not be worth the expense.
LTG : )