Customizing simple existing Sudoku jQuery Script

Hi! I have an existing small open source sudoku jquery script (599 lines of code) (see attached files), which I need to get customized - OR - if easier for you, write a new one from scratch. Currently the sudoku works like the following: - create new game - now you can click into the empty fields and fill in the numbers with your keyboard - hint - script tells you if numbers are correct (green), oder wrong (red) - solve - script shows you the solved sudoku Now what I want to have customized: - On start, the sudoku creates a random new game - I want the same game for every new user per day. So the chances to win (see following points) are even. - Track time for solving. Install a timer (jquery), and create a highscore list (every day). if a user makes it into the highscore, the script should ask for username and email, after that the data gets stored into an sql database. A cronjob should save the highscore list for every single day. That's it for the beginning. I have plenty of other ideas, which - if you are good - I would like to work with you on. So make me a good offer, write something about you, tell me how long it will take. Thank you.