Header Logo and Nav with Sticky Logo and Nav on scroll

Hi,

I’ve changed the ‘Masthead Layout > Logo in Menu’ and right aligned the naviagation. But how can I increase the height of the navigation and logo to the original (not Logo in Menu) size and also make this a smaller sticky menu with the logo when you scroll down. Really I want the original header setup styles but with the navigation like the ‘Logo in Menu’.

Hope that make sense. Thanks for your help.