Own Wetransfer-Channel with LOGIN

We need a page with Login. The Login for the clients should be create from us, so we need a admin-site where we can create and delete accounts for the Login-page. When the client has done the login, he can transfer file through our Wetransfer-Channel. It should all be neutral so that the client doesn’t DIRECTLY notice hes is using Wetransfer. The client should see a form, in that form the client sees almost a wetransfer-box: On Top: “Add flies” Next: Client-Mail Next: Client-ID Next: Space for Message Next: “Send” On the side there should be a Logout-Button and a Menu with 4 Navigation-Points (Kontakt-Form, Terms of use, privacy, Imprint) That should be easly be done with the Wetransfer-API