Hive account@gomatthew are you on discord? Might have a few questions for you for sure. Also would like to take a look at your website to see what their platform allows for. A lot of my starting inventory is vintage toys and back issues/out of print stuff on the comic side so if it's working for your vintage items I'd bet it would work for me.

I love running into things at yard sales. Have found some of my best shipping supplies there...filled my entire 7 passenger suv with large bags of packing peanuts once for $10. Currently have a few thousand bubble mailers from one that I got for $15. Never know what you will find when you are driving around.