I'm an experienced writer, copywriter, and blogger, with a mix of agency and freelancing experience over the past 7 years.
your project looks interesting, specially if you're planning to include SEO enhancements, so I can guarantee your new copy will meet all guidelines, to make it easy for the website to rank and perform better on Google.
Before we start, I'll need to make sure if the current website structure is the same final structure that you want, if not do you have one ready?
Also, I wonder if you have wireframes for the new webcopy?
We need to agree on the target number of pages, in order to calculate the cost and time better, also I can provide you with a full SEO copywriting service, starting from creating the content structure, keyword research, and final copywriting, if needed upon an agreement.