private database driven website

i need to commission a website which takes data and images from an established website on a daily or weekly basis the website is [login to view URL] and saves the listings (it is only 1 category of listing so there will only be approximatly 20 listings max a week) to a database on a webserver which is accessed from a restricted area so a simple login will be needed when you go to my website and want to access the restricted area. i then need to be able to export from within the secure part of the website, in a format which i have made up, both pdf and excel documents. i have drawn up how i need the data to be displayed. i have also developed a access version of the database which i am happy to share with the successful applicant. within the database i want to be able to search results based on date and also want to intergrate the google maps API, you will see what i mean when i send you the templates i have mocked up. there will be the potential of more work, ie the construction of the general access area of the site for the successful applicant. i will retain copyright of the website created, all databases created.