Continue a small GAE web application

I started to build a web application for software licensing management and due to lack of time I need someone to finish it. The infrastructure is all set. it's a GAE project with spring security already implemented. The web app should display CRUD for products, customers, license keys. The license keys CRUD is already implemented and should be used as a reference for the two other CRUD pages. The license key CRUD uses REST web service in the server side and Jquery on the client side. there is no css/ graphic design involved. Your work will be to create CRUD for customers and products and to tie it up to the existing license keys CRUD which currently does not link to the producuts/customers entities. That means creating the relations between the entities, writing some JPQL queries and adding html pages and links from one page to another. very simple. I'll provide the source code privately for anyone interested.