Well the insurance company finally called...

Simply put, you are entitled to market value, not book value. Whatever a bike like yours would sell for or cost you, in your area, is what they need to pay.
Your policy should state you get it back the same as prior to the accident or the value of the vehicle. This is determined by what the vehicle is selling for. search your area using bike trader sites, craigslist ect to determine the value, what the vehicle is selling for. Also try and buy back the salvage. usually would be as little as 10% of the value of the bike. You can then sell it or part it out... good luck