See if you can get a copy of The Homeschooler's Guide to Portfolios and Transcripts it's an excellent resource for turning hsing info into a transcript that schools will understand. There are a variety of different layouts explained, from the traditional course title/grade set-up to ones that look like resumes, to narratives.
There are templates for organizing and explanations on how to put focus on particular information you'd like to highlight.
I've done both of my older kids' transcripts using this book.
Single Mom to 3 (12, 17 & 21) and .