Joomla 3-6 Upgrade & Template

I need my current Joomla 3.x site moved to Joomla 6.x within two weeks. All existing articles will be retained. Menus and categories will be reviewed. I will give you several reference websites so you can capture the fresh, modern feel I’m after while still reflecting my brand... (Budget: $1500 - $3000 USD, Jobs: Content Management System (CMS), CSS, Documentation, Frontend Development, HTML, Joomla, PHP, SEO, Web Design, Web Development)