Nikon DSLR's body mount for lens broken

My Nikon took a spill when I dropped my backpack.
It is the D5000 model,
and the mount on the body itself for the lens is broken, 2 of the pieces snapped off
so the lens can be partially mounted on but it has to be held onto the body to take a picture
which basically means zooming and attempting to do manual settings just doesn't work

does anyone know if there's a part for the body that can be ordered so I don't have to get it fixed (expensive) or buy a new body (even more expensive)?
remember, this is not the LENS mount, it's the part on the body itself
There's plenty of info for the lens… Which is completely fine

Camera repair isn't a DIY job. It will either have to be repaired by a professional, or replaced.

If I was avoiding having it fixed properly, I would try gluing it back together. I have never found a source of camera parts other than the screen. But you might try this place. Good luck.
http://www.partstore.com/Content/CategoryPages/Electronics-Cameras.aspx

Call Nikon for repair.