Hi Dan, I hope you are having good time.
Well, I am out of fancy words, but I have already worked on such kind of projects,
I own a domain and I have put my work samples up there that include the admin panels like you want or I can show you by sharing my screen on skype and running my work samples on the local host, or I can send you snapshots of my work. Either way you want but I want to assure you that It is my work that I do on daily basis so I dare you to give my a chance so that I can develop the gaming site for you.
I ll make a discussion forum on the website for the users , In my opinion that is the first need of gaming site , because gamers need to discuss these things.
Very exicted to work with you, My skype I.d is 'shdrafiq' , let me know if you are interested. Looking forward to hear from you,
Best of luck for you project.