The reason why I think $35 is a fair price is that you are getting the services of a journalist who has worked as a sub/ senior sub and assistant editor; researching , writing original articles, leaders and investigative reports for more than 22years apart from working as a copywriter for a major advertising agency.
This work is right up my street and a thoroughly professional job is guaranteed. I look forward to working with you.
Yours truly
Cadfael