Sorry man, that really stinks.
My sister recently crashed her SUV. The value was about $45k and the damages were estimated at $20-25k. Geico still totaled the car out as they figured the car could be auctioned in its current state for about the difference in value so it didn't make fiscal sense to repair it. I wonder why they didn't do the same for you since that car, with that motor, could still fetch a pretty penny at the auction.