How much would you charge

I have over 500 diapers (baby hit a huge growth spurt and out grew the size in about 3 weeks) still in packs, totally unopened. I can’t return them because I’ve already hit my limit for returns and the majority were from our shower so I don’t have receipts. I have a friend who is about to have a baby and I want to give them to her, but I really need the money since I’m having to buy more diapers than I anticipated. How much would you charge for that many diapers. It’s like 200+ pampers, 100+ Huggies, 70 pampers pure, 100 honest brand and then a few small packs of store brand. The box of pampers alone retails for $55.