Hi bapparabi,
I will do the task for $50. If that is the limit of the involvement the providers give I would really recommend going with moneypot. There is a great dice site implementation here:
https://bitcointalk.org/index.php?topic=1062680.0;allYou would not only save the money from doing an unnecessary modification but gain the support of moneypot. Don't get me wrong I would like the work, but you are best off with some company that will support you in developing your own casino, and in my opinion moneypot would be the best option.
Let me know if you are determined to proceed.