I think Sysprep may be the way to go but there's also WuInstall
I don't know if it'll work for you but you might be able to create a batch file that runs on boot up with the required cmd line. Check the documentation in particular the Reboot / Shutdown Options
and Caching Options
Not sure about the Licensing stuff or price but you will need the Pro version for these functions but there is a trial to see if it can do what you want first.
EDIT: Forgot to say you will need to set the tablet to auto login to automate the process.
EDIT: Just read it has a /rebootcycle switch which may be better than a batch file and may or may not require login.