New to trading – what would you consider a fair trade?

Hi everyone!
I’d love to get everyone’s thoughts on what you’d consider a fair trade.

I recently bought Secret Gigi Underworld (I didn’t pull her myself) and I’m thinking about trading her. I think the general rule is usually a secret for secret or regular for regular? but I’ve never traded figures before, so I’m not sure what’s considered fair.

I’m mainly looking for Street Style Frankie, but I’m wondering what collectors think is a reasonable trade, especially considering Street Style is an older release and has probably been displayed/not in brand new condition anymore.

What would you consider fair? 🫶🏾