Hi there... this sounds like a nice project to do. Can I ask, do you have an existing framework for your back end/admin system?
I am happy with my bid and timeframe and would like to tell you a bit about myself and my experiences.
I have experience with PHP/MySQL/HTML/CSS/Javascript having worked for 11 years with a yacht charter company as their sole in-house developer up until May of this year when I started on Freelancer. I have also been running my own games site for ten years. For the yacht company I was asked to build every kind of tool imaginable, sales tools, finance reports, accounts tools, management reports, customer website with search tools, search results, automated PDF creation, real-time chat, etc, etc.
Please send me a message if you like my proposal, even if I am offline, and let me know when is a good time to catch you. I will reply to any messages ASAP, and tend to be online from around midnight GMT up until 6pm GMT (I am based in Manila).