BossShopPro-Mob Hunting Config- Link
so this uses Hastebin. idk how long it will last.
Also... Idk how or what to say about it but this is just the idea on how the shop would work for Mob Hunting. this uses BossShopPro as a Example.
I think im done here...

I have given up on this one for now. Although the Dev of BossShopPro was very help full, it seems very complicated for me to create a BossShop at runtime and I dont really have the time to dive into this.

Maybe you could ask the dev of BossShop to add support for the heads. I am willing to write the needed API to him. If he writes to me and tell me what he need.