Hello Teaohuri.
So many question – and they are all good.

There is no one right answer to any of them (darn it!) and a lot of it comes back to some motivation and risk questions;
– why have you decided to do this project?
– what would success look like for you? Is it financial? personal satisfaction?
– when you re clear on that, you can ask, how much do I want to invest? What risk am I able to take on, or do I want to take on

In terms of establishing a brand, I would definitely start small we a specialty chain like Farro, which you can learn the ins and outs of grocery with limited risk, and also decide if that’s what you want to pursue.

Once you’ve gotten clear on the motivation question, very happy to have a phone call if that’s useful 021 999577, Vicky