I know you said you’re not ready for free motion, but I suggest you watch this video:
https://youtu.be/yy6F08rbtAU.
I was a newbie to free motion the first (and only) time I did this, and it turned out pretty well. Although in full disclosure I have been following pantographs for years.
Pics of my quilt are here:
https://www.quiltingboard.com/vbulle...t-t297971.html .
You should at least watch the video and try to make a practice sandwich. I think this pattern would look good on your quilt and it’s much easier than it looks.
Good luck!
ETA: A light silvery grey thread is good when you have multiple colors in your quilt. In this one it will only show a lot on the darkest color.