[Price Check] Diamond enchanted swords

1x Bane of Arthropods IV + Knockback II

1x Sharpness IV + Knockback II + unbreaking III

As per wiki:
Every repair of the item will increase the repair cost for you. You may sell this item to another player, and they will start from 0 on the repair cost.

The first sword is fresh of the enchantment table
The seconds swords is a combination of two swords

What is a reasonable price to sell them for?
I think maybe 1st 3k and 2nd 6k ???

Bump