I will write 100,000 words for the site (That's the average words in an authority site on any niche)
Average monthly searches for the keywords is around 250
Design the blog.
What i will need from you will be the domain and an agreement on price and TAT.
Pm me for details and sample articles
Why don;t you read the first post before jumping in and saying you can do it for him, he is selling his service not asking for the work to be done or a partner.
Get out of his business thread