ASP.net AJAX project - online port of an existing ERP

We need a online porting of an existing ERP, Just the part of customer management (new customers, edit customers), create new offers, order confirmations, delivery notes or edit them. Display items in stock, view availability and so on. The items should be searched using ajax. Sending offers, delivery notes and so on as pdf via e-mail should be possible, also printing. We have a active DevExpress license, so the developer should have too, since we like to use these components. The backend is a sybase sql anywhere database, but we are able to provide all database connectivity via c# methods. We also need a user login functionality for different users on different databases. So this will be a multi-costumer solutions. All code must be heavily commented and should be easily translated into different languages. The translation is not part of the project. We would like to see a similar project (data entry, displaying tables, pref. with devexpress) We can show the full needed functionality via remote control . Speaking or understanding German is a plus