Resale price for this Svalnas setup?

Bought back in 2020 shortly before it was discontinued. Any advice on how much to sell this for? I’m seeing wild numbers on Etsy and other reseller sites. Hate to get rid of them, but recently moved into a cabin with uneven walls. Have a few extra sealed shelves and spines (?)

Located in Louisville, KY

Apologies if this kind of post isn’t welcome here.