Galley Lock

I'm building my teardrop with a curved backend much like the SoCal teardrops. I'm a little worried about my galley locking mechanism. Does anyone have any detailed shots of their locks and where they got them? It was mentioned that I should just use the ones that Grant sells, http://www.lilbear.teardrops.net/parts2 ... alleylatch, but I'd really like one in the middle with a handle. Anything would be much appreciated.