DropInventory(ref) PickUpItem(ref) EquipItem(ref) [or] EquipMostDamagingMelee()
or, if 'equipitem' doesn't work to move an unmovable item from inventory to quickslot;
DestroyItem(ref) DropInventory() CreateItemInSlot(ref) EquipItem(ref) [or] EquipMostDamagingMelee()
Sorry if this is unhelpful, but I had fun trying .