Have you folks seen this yet? http://www.christianleadersinstitute.org/ I didn't know anything about it until someone mentioned it at work about a month ago. Turns out these folks are only about an hour from where I work. I went out for coffee with the head man. Now I am designing an English course for them. I am really impressed with this organization. I think it would work great for older homeschooled children. They've really done good work and thought thru their courses. Here's the English course. You can enter as a guest. https://moodle.christianleadersinstitute.org/course/view.php?id=388