Lots of factors to consider here.

1. Blue book is not what is mandated by the State for valuation. The cost to replace with like make and model and condition in your market.

2. Try autotrader.com and the newspaper for comps. Also use Seattle/Belelvue umbers, they seem to be inflated.

3. You can seek additional $$ for loss of use. Often paid as rental car.

4. I have some other thoughts for you, you can PM me through the site and correspond via email if you want.