Anyone done a rectangle CREE headlight?

So, I went out on a limb and assumed our headlights were 4x6 so I ordered a set of 4x6 CREE led headlights but to my surprise the wr250r/x has a smaller headlight. I've searched ebay and googled but have not found another cree style headlight like this in a smaller size. Has anyone found on or made something work? Here's the light I'm talking about:

I personally haven't seen anyone install something like that. How much bigger is it than the OEM light? Is it something that you could somehow do a custom install on?