Taco!
Hello,
I'm a WordPress developer, and SEO/Google Analytics are a regular part of my work. I would likely use Yoast SEO as the plugin for SEO.
What content do you have ready?
Do you have a rough page count, and an idea of images that need to be generated? On the scale of coder to graphic designer, I'm much more on the coder end. But I'm able to create pleasant graphics with a model to follow. If you have some examples of images that you have in mind, send me links or the images themselves please. Then I can let you know if I'm suitable graphics wise.
As far as installing the theme and potentially modifying it, I've done work like that often... including building themes from scratch.
Thanks and hope to hear from you,
John