No worries ☺️. If you end up building out a cool project with the Free Edition, I'm sure the community would love to hear about it. I've not got around to anything ML-related in Databricks yet, very eager though 🫡. There's a dedicated space for it https://community.databricks.com/t5/community-articles/bd-p/Knowledge-Sharing-Hub 

Best of luck with the project.

All the best,
BS