First off
Welcome to the forum, and I hope you get the info you need.
We don't really care much about race and skin colour on this forum, so no need to care much about that one.
As for the restaurant, I can offer some general advise only.
Do the locals tend to like burgers, or do they generally prefer locally available food?
How much cash is in the area, and what sort of footfall from your targeted is already there?
Most local restaurants earn local wages, so ask if you can live fine on that sort of cash.
Hopefully others will be able to give info based on local conditions.