Yes and no. Normally such implementations are more costly due to number of factors such as: feasibility of target payment gatway being implemented natively into the core Thrinacia Atlas engine, features that are available and number of legalities (whether it can be used for CrowdFunding).
This is why we normally recommend that clients follow our recommended guide on how to implement custom payment gateway externally themselves or with their own development team. The guide is outlined here: https://www.thrinacia.com/blog/post/implementing-custom-payment-gateway-with-thrinacia-atlas
If you are still wanting Thrinacia custom engineering and development team to implement or integrate custom payment gateway for you then you can contact us via our contact page or open issue request in our support system so we can first determine whether it would be feasible for us to provide the implementation.
Note that such implementation may be expensive and require more time due to number of factors surrounding how the custom payment gateway works and operates as well as how it can be integrated in our core Thrinacia Atlas engine. Also it is usually very hard to quote or estimate such system as there is lot of unknowns.