Where are you located? I have one I took out during a recent remodel. If you're near enough to pick it up (I'm in New Hampshire), I'll take the measurements.

Bummer. I am in NJ

What's your budget? Before I found a framed mirror, I had planned to buy a frame and have a local glass place install a custom beveled mirror. I actually had the frame made online, but didn't like how it turned out. I priced out a 48x30 beveled mirror for about $120, installed. You might be able to get a frame made for $200 or less. Aaron Bros. quoted me $520, for just a frame. Uh, no.

Craigslist. I found my mirror on CL, and my father made a frame for it out of reclaimed barn wood.

Try a glass shop in conjunction with a frame shop. I had a piece of glass over our sink cut down and re-framed. It was pretty large, and the glass people took it down, re-cut it and took to the frame shop for framing. I picked out the frame I wanted. The whole thing cost me around $250. Yes, I already had the glass and the risk was if it broke I would have had to buy a new piece.

To save $$$ could you just replace the picture in the center with a mirror to match the other two?

what about getting a large mirror, builder grade and framing it yourself. My previous house used to have a large mirror, ugly, btw and I framed it and looks like new ;-)