What is a fair price to pay for sew along instruction?

I'm getting ready to do some sew alongs for some of the free patterns that are available to us from our wonderful fabric manufacturers. The patterns are already free to you. I would be providing step by step instruction via video, photos, and written text to guide you in making these quilts. This is great for beginners or for anyone who wants more confidence in their piecing. I really want to help quilters who struggle with confidence in their basic skills or those who love ongoing motivation so they can be accountable to complete a quilt top.