just dropped my d750. case is cracked in two places and the aperture and focus controls no longer work with the few lenses i have. the hot shoe is crushed and the built in flash doesn't pop up anymore. the ovf also flickers now. i guess it fell upside down. but i can take pictures fine. (the lens i dropped it with still seems to work on my d5100 tho'). before i send it off back to nikon for repair (and pay 100USD+ just in postage), does anyone have a feeling for how much i should expect repair to cost?