ya motor is fried. You might be able to salvage simple stuff like the clutch and its related parts. Probably motor side covers and maybe even some top end stuff. Plus the cases possibly. bolts and what not.
Used motors are basically a crapshoot. So try to find someone you trust. Me personally, I would take a swing at a salvage auction bike. Get a motor and spare parts to boot for less than a motor on ebay.
06 ZX6R - Vortex Rearset, GPR V1, Driven Clipons (soon), Pazzo clutch lever, CNR Brake lever, Secondary Butterflies removed, PCV+Autotune, Micron Serpent Headers/Midpipe, Yoshimura RS-5 slipon, MotionPro Throttle, Aftermarket Adjustable Levers, Ram Air mod, Jumper mod
03 EX250 - Wife's current whip
98 ZX6E - Basket case at the moment