Just to add to your woes, during the LM week there are covers put up so you cannot see any of the cars and in addition, last year some additional fencing was put in which now extends to the roof line of the buildings along this streacth of the track.
We went in a few years ago during the PQ weekend and had a very enjoyable meal with the Maserati club, it was just fine, about £15 a head inc some beer/wine.
Getting there and back again will be a real pain, what you might want to consider is having an evening out and go around to some of the viewing areas and include the restaurant as part of this trip.
This a photo taken by JPC during the Classic, you can see the covers and fencing, its just the fencing now goes passed the roof, have a great meal!!
