Comparison Website with integrated back end DB

We wish to build a comparison website for the services industry. Which customers will come to and enter their location, we will search our DB for the companies matching their requests and show them a list of relevant businesses in the area that can complete their work request. The back end will need to comprise of a few areas:-, customer log in, company log in and admin login. The customer login will be created from the point that the customer agrees the offered company to complete their work, they will then be able to access the job sheet, edit and update and detail and once completed they will be able to rate the company that completed the work. The company login, will give information of outstanding jobs, completed jobs and financials. The admin area will be able to view, edit a nd update all areas. Full detailed information will be given to the winning bidder in due cause. THe project must be delivered in ASP with an SQL DB. The finished project must also be transferred to a webserver, set up and tested