I have considered starting a coffee cart business outside of my brothers new Specialized bike store in downtown Mountain View, CA. The front of the shop gets heavy traffic and there is a place for tables with umbrellas. There is also a nearby park. When he goes to bike events, the coffee cart would go with us. This would also be a great source for sales.

Does anyone have any experience or advice about the coffee cart business? I don't even know where to start. I love coffee and love the idea of starting my own line of coffee rather than using an existing brand (although this is more work and there is more risk of customers not accepting my brand). What are start up costs? Where do I purchase a coffee cart? Liability? Etc.

Thanks!