Matte focusing screen for nikon d7000?

Where can i find a focusing screen for nikon d7000? I'm looking for a matte focusing screen the one similar with the stock focusing screen and not the katzeye one.

Not Katzeye? I totally sympathize with you. If I bought from them, the focus screen alone would be more expensive than the whole camera! My cameras are secondhand.

Check eBay. Guys from Hong Kong and Shezhen are offering cheap knock-offs. They arrive very dirty though and it's up to you to figure out how to clean them. When you do, they will work perfectly with your camera.

No, I haven't bought one from them either. I use Pentax dSLR's. Pentax viewfinders are bright enough to allow for manual focusing of old film lenses made 3-4 decades ago.

It doesn't exist. Why? The D7000's screen is sufficient to do the focusing. Use Liveview and zoom in.