Data Capture

I need a program which automatically (scrapes) collects information from three websites and formats them in a text file. The first site allows a mobile number to be entered (which can be generated by the program through the use of an increment through a loop or an input file with one mobile number per line) which it will validate as correct or not - it has a Captcha that is required to prevent automated verifications. The other two sites do not have a captcha. All the information needs to be collected which will comprise potentially several million numbers. So the program will have to be written in Java or using a technique where the whole page is not downloaded as the speed and resource requirements on the host will be too much. The work needs to be completed within 1 week. Payment will be made when all sites are completed and a sample of numbers are verified as correct from those gained. The programs need to be written in a way that they are as generic as possible for use with other sites with minimal modifications - parameterisation should be used to prevent hard coding too much into the programs. The code will need to be commented and written so it is easily maintainable.