Speak to Heather at Byrne-Up.
They go to the Ring about once every month and know everything. They are super-organised, mucho-friendly, provide free (good) instructors. Simon Byrne is a "Nurburgring God".
They can arrange all of your accomadation, passes etc., and will probably do a guided ride from Callais to the Ring (with luggage service) - I've been on many of their guided rides and they are a total blast.
Tell Heather that Spin sent you - I might get some discount on my bookings with them this year.
heather@byrne-up.co.uk Best of luck and may see you there.
Spinoli