ekashu payment getway implementation, TAG feed creation, finsbury code integration and more

I'm seeking an experienced developer to help me with a project. Specifically I need help integrating Finsbury code, implementing Ekashu payment gateway, and creating a TAG feed. This project must be completed within a week, so I'm looking for somebody who is willing to work quickly and efficiently. I have all the specifications for the tasks ready to go, so the developer just needs to jump in and get the job done. With the right expertise, this job should run smoothly and be finished on time.