Hi, Bobbie. I live a ways south of Bandon & have camped at Bullard's in the past. They're pretty picky about allowing extra vehicles at the sites, but miracles happen every day & you might catch the registration
person in a good mood.
I've attached a digital camera pic of the campground (hopefully I've attached a pic!). It shows A Loop, with the closest Parking areas noted (they're to the north of A Loop). They're not too far away, but then distance is always relative (I walk 4-5 miles every day, so to me it's a hop, skip & a jump to the Parking areas ).
Hope this helps. This map is circa 2014, so hopefully nothing has changed.