[HELP] I need help with Buckles!!

[TurnerPurple]

Hello, I'm new to metal working when it comes to smelting/casting. I have worked with sheet metal on multiple occasions, and my soldiering skills are not the greatest. But more than anything, I just want to create some 18th century shoe buckles. I have found some graphs of the components which go into it, but I'm having a hard time wrapping my mind around how to create these myself. I've heard that they are indeed casted, either with wood, or wax, but would there be a way to create them using sheet metal? 🤔 If not, what would be the recommended method of creating such buckles?