Mildura to Broken Hill via Menidee Lakes

Did you try this site?

Not sure what you mean by dated, David69? Not much changes out there except road conditions. So places to stay and see are pretty much what you'll find in all the forum posts and blogs here and all you need to do is check the road status and whether the areas you are interested in are open.
Mungo is a terrific place and although we've not camped there, we always go for the day when we are camping on a friends property out of Pooncarie. I reckon you could easily stay there 3 nights.
Pooncarie is a great place to camp if you want to have fun on the river. There is, as far as I know, just the pub now. General store seems to still be closed and the little cafe is also for sale. So as long as your kids aren't dying for icecreams every day, they'll have a lot of fun there. And the pub is great.
A drive from Pooncarie up the west side of the river to Kinchega is great (although road may be closed at the moment). There's a tiny old cemetary at Bindara and then you head through Tandou and onto Kinchega.
Broken Hill = loads of things to do.
Have fun.
Louise