Elsa will have no problem in the truck. We’ve been to Potjiespram, De Hoop, Richtersberg and Kokerboomkloof in our NPS. We stayed away from Domorogh Pass…although on a next trip I’ll do it.
Be careful of thick sand on the river road between De Hoop and Richtersberg. Those OEM tyres are not made for sand – they need to be pumped too hard. They will also make the drive on the gravel roads somewhat frustrating. If anything, I’d recommend a wheelset upgrade.