I dont know if it helps but I recall you asking the girl I was with and myself as soon as we arrived just be fore dusk,so I saw every one leaveing on the trail and I recall most of them and a few cars parked at Bowen and lower lot.fell free to email me your phone number or ask for mine,describeing who we saw on the way out would take forever and might wrongfully accuse and piss off the wrong person.
Hope we can help.