I suggest you go to the nearby jewelry store to consult their whole operation process, especially where to purchase goods. Ask implicitly. Generally, others will not be very willing to tell you when they know your purpose. After all, if you wanted to set up a stall, you diverted her customers. Or you can ask other jewelry stores in areas far from Fallen Street.
I don't care much about the protection money either. There may be some gangsters or something. If so, we need to have a look and discuss with them. After all, you want to do business here.