Comprehension, Passage Writing with 500-600 words

I am looking out for a creative Writer, an author who is able to write Comprehension and Passages for us on different topics, Each passage will be 500-600 words having 8 questions based on the written passage.
Questions should be interpretative and not too easy to understand.
This is similar to Blog or Article writing, just that this will be used in helping kids to work on reading and interpretation skills.
We also need someone to write a Comprehension passage with fill in the gaps for sentences provided and extracts writing.
5 Comprehension Passages
5 Passages with Fill in the gaps, missing sentences
5 Extracts with questions based on them.
The Passage should have a Lexile level which should not be too easy or too difficult. The lexile level should be around 1000 to 1200 levels maximum.
Content needs to be original on its own as we will check for Plagiarism, Freelancer will need to sign NDA & IP agreement if ready to work for us.
Please find attached a sample to get a better understanding of the work.

Thanks