Hello and thanks for reaching out! Absolutely, that sounds amazing! You’ve probably seen this already, but just in case, here’s details around making your own stuff for We Deal in Lead:
https://lead.byodinsbeardrpg.com/licence/
And here’s the system reference document (SRD) that you can use:
https://lead.byodinsbeardrpg.com/srd/
Please share a link when you’re done and I’ll add it to the We Deal in Lead page. Good luck!