Ok, I know that 24 wrappers fit in a normal envelope, but 180 wrappers would probably go better in a flat rate for size and speed, yes?
I am thinking $5.15 shipping, < 50 cents supplies, < 40 cents paypal fees, and a few bucks to pack 180 wrappers into separate bundles of 36 and mail them next day to Topps.
If that sounds fair to you, call it $10? (That would pay me about $44 - to open all 10 cases immediately and sort, bundle, and ship all wrappers next day. I will have to work through the night as I will be opening 20 cases.)
Or you could also sell these to anyone in the break instead.