Modifying one YOOtheme template menu to look like another

I'm currently using the 'Enterprise' YOOTheme Template. It looks great, but I'd like the menu to look and act like the menu from the 'Air' YOOTheme template. I expect this will mostly require copying the CSS from one template to the next but I do not want to risk messing anything up! Both are installed on my site and I will give you access to it. Willing to pay $30 for this. This is for a site designed for use by McGill University.