Hi, I have seen the attached file and understand your requirements and will surely combine your 3 domains into 1 domain and also edit changes in the header.
Relevant Skills and Experience
My key skills are Website design, wordpress, theme/plugin development, customisation, HTML5/CSS3, PHP, MySQL, back-end development, jquery, javascript, bootstrap, etc.
Proposed Milestones
$150 USD - Back-end work and header re-design