WordPress Refresh & Content Creation 3-5 pages

Our site www.avidahealth.org is running on WordPress but it’s starting to feel a little tired. I need someone who can jump in right away, smooth out the design and layout, and freshen up the content and copy—all in the same pass... (Budget: $25 - $75 USD, Jobs: Content Writing, CSS, HTML, SEO, Web Design, Website Design, WordPress, WordPress Design)