What happens to a fool and his money?

Test your idea with one coffee shop.

Nothing like wanting to enter an already glutted market as a newby, wish you the best. You need to demonstrate that your idea will work on a micro level before attempting to go macro with it, the experience will either give you the expertise you need or attract it.

I agree with the commenter at the top(Or bottom?). Anyway, if you need it, I'm sure you can do it! And it won't work without a good team. Especially without a designer and a marketer. The designer makes a face for your brand, and the marketer shows that face to people. So it's better not to skimp on this one. have a look at Deuce Branding Design Agency . They're pretty good at what they do. I think their company is from London, but I've worked with them online. Anyway they are pros, I suggest you look at their work and talk to them

If your time, future, business and money is important to you, then Sure! just and just go with a pro team, otherwise your idea will be just a failed plan.