The main thing is to be sure and get all of the mouse nest out. Many times, if the smell continues to linger, it means that there is still some nest material in there somewhere. Otherwise, it's like you said, wash it up, and air it out.
When I put my stuff away for the winter, I put a bar of Irish Spring soap in there. Supposedly, the mice don't like it. Also, it leaves a better aroma than moth balls.


Rich
1947 Loadmaster
1947 Chev. Loadmaster
1959 Chev. Viking 40

Life is short--eat dessert first!