How much is your gas unit fee for an order book action?

[ghost]

I hope your gas unit fee is not exceed than 3000 units for a action at now.
Your code base is look like too fancy, make gas fee be very heavy that no one could suffer for that.
Or you could try to wait for somewhat Resource Group AIP and Object AIP.

BTW, Please learn how to use inline function in move for now.

Gas fee table:
https://github.com/aptos-labs/aptos-core/blob/main/developer-docs-site/docs/concepts/base-gas.md