Not sure if this will help you...but this workaround seems to work for me:
1. Put the CD in, but don't select auto-upload. Instead, let the list of the tracks load. Sort by tracks (to make sure they're in order) and then highlight all the tracks.
2. In the upper right corner, there's a dropdown list. With the tracks highlighted, select Join CD Tracks. The tracks will be bracketed together now.
3. Then select import.
4. When the dialog box comes up, change from iTunes Plus (which was the default for me) to Spoken Podcast. Also, I have the Import Using option set to AAC Encoder.
5. After the tracks are imported, it looks like you still can't change the setting from Music. But, go to the little Music icon in the top left corner. Then Playlist. Then recently added over in the sidebar. Sort to have your last addition at the top of the list. Whew. Almost there.
6. Right-click on your audiobook and go to Get Info, then to Options. From there, you should be able to (FINALLY) change to Audiobooks under media kind. Also, it's good to select the other checkboxes to remember playback position and skip when shuffling.