Gay Marriage Venue - Arizona

Hey,
I'm a British guy, and I am on the verge of marrying my fiance from Arizona, USA.

I was just wondering if anyone knows of a venue where we can get married. We are a gay couple and would like a small venue for now, due to money constraints.

Something like a registered location at a lake, or something along those lines? Obviously the venue needs to be legitimate as we'll need our papers, witnesses etc.

It doesn't have to be in Arizona, but ideally, somewhere near Buckeye.

Thanks!
Zen