Just take the backroads all the way in. Latrobe to 49, thru Jackson, into Angels camp, stay straight and hot rod cafe on right. Basically you are half way to Yosemite. Heck, I'm open for this Sat too!
Called Rods Grill in Angels Camp. They said they have plenty of parking including street and church parking. Amount of people is no problem, they said to call ahead and they will try to cone off parking lot. This is a neat place because everything is street and hot rod oriented