You have to remember, that no matter what you end up paying out the door, the bike is only worth $8700 when you buy it. Yes, you pay plenty for tax, title, and registration. But you have to remember that in most states, the next person that buys the bike ALSO has to pay sales tax on it! When you sell a bike, you can't reasonably expect the next person that buys the bike to pay for the taxes, title fees, and registration that you paid when they also have to pay their own title and tax fees when they transfer the title to their own name.
$12k out the door? Wow.
Best of luck, though. And sorry to hear that your plant is closing down - it sucks to be laid off. Been there, done that, got the bloody t-shirt. I hope you can rebound quickly and maybe not end up having to sell your bike!