Good for you taking on this class! We need more teachers like this. I am a former financial literacy teacher and found using this site to be the most helpful for all my needs:

https://www.ngpf.org/math/

You will find units, curriculum, projects, assessments, lessons, support groups, and much more for everything you need! I hope that helps.

Not to mention, this is all for free. NFPF is a non-profit organization. They also offer trainings for teachers.