The Best Way?

My boyfriend's grandma has come to live with us for a bit while we find her a new place, and in the process, we're going through all her stuff. She's choosing what she wants and what's stuff she's just accumulated. Some of it's not worth much, but some of it is super cool. We can't keep all of it ourselves, however, so I'm planning on selling it.

Since a lot of it is vintage jewelry and other items in that vein, I'm thinking Etsy. My dilemma is whether to put it all up in my existing shop here, which I worry would make the shop seem overcrowded and confusing, or to open a new one. I'd love some other thoughts, especially from those of you who might've done similar things (ie opening different shops for different types of items).