I'm going in 15 days! With daveyboy11 on here too.
Get the tunnel which costs about £120,
Google Monica Schneider apartments, she has a lovely house which is cheap and enough space for 5 cars and a garage. Plus it's really cheap.
Make sure your tyres and brakes are good. Drive at 70% of your limit! enjoy yourself and have fun.
Don't take risks - ie going out in rain etc.
Do max 2 laps at a time and give yourself about 20min break before going out again.
Look on YouTube for 'how to tackle the nurburgring' it's a great video to learn the lines.
Watch every crash video you can find, look for the most common corners, and why they crashed. Was it track condition etc.
I find a lot of people who crash are because they overtake a slower car, are off the racing line, going into a corner too quick, off the line, under steer/over steer then see Armco.
The cost of crashing is monumental. Even for the lightest tap.
Just approach it like a country lane you don't know.
Just enjoy yourself though. No point going for records. You're never going to be the quickest guy out there, and you've got nothing really to prove.