Glad to hear. Can’t wait to see what you come up with!
Looking at SW5e, I noticed they didn’t have any licensing or disclaimers - not even an OGL declaration. I am not a lawyer, but I recommend you use a simple disclaimer. That, combined with the price of “free,” should keep the House of Mouse off your back.
I do recommend you avoid Creative Commons license for this one, since that grants powers to derivative works you likely don’t have the authority to.