Remove header + edit top menu bar

Hi there

RE: Storefront Theme.

I'm going to be cheeky and ask 3 questions....

1) How do completely I remove the space above the top menu bar?
2) I would like to add my site name to the left of my menu bar and align the menu items to the right - kinda like Shopkeeper
3) How do I get my top menu bar to stay where it is when I scroll down, I think thats called "sticky" right?

Kind regards
Julian