it reminds me of this :
http://www.youtube.com/watch?v=grb079bY-Gc
Seriously it would be fine it youtook up my offer as its fun to go with someone. though i am used going alone and then hook up with my german pals.
Driving on the Ring is ok if you use your head and stay within your comfort zone.
Also if you are with someone who knows their way around and with coaching it will not an issue
For you it is an opportunity to familiarise yourself without fear so on subsequent trips you know what its all about and how to prepare in consequence, youself, the car etc.
By the time we get there i would have formed an impresion of you abilities anyway
As for wear and tear that will happen on my own anyway so extra laps will it makes little difference over a weekend