Hi, Grammar Goddess,
Thank you for proofreading my teaching material.  I'm wondering if you could create model sentences for my teaching material. As you have seen, I need separate, independent, short sentences, each of which must have its target word and must consist of approximately 10 to 12 words in length.  Of course it is not a proofreading job, so the rate should be different.   What rate would be suitable?
I look forward to your reply.