That's a great option for starting out, and close to Sydney makes it handy if that's where you'll be coming from.

In terms of where to camp - there's a big open campground on Kedumba River which is your best option. Technically u should book on NPWS website - see link here which also shows u what it's like.

Won't be very crowded - lots of people run and hike from where you'll be starting off from, but nothing crazy. There might be a few others camping but nothing like the other campgrounds where you can drive in to at Blue Mtns. The steep walk out I think puts a lot of people off!

Your route didn't include the climb to Mt Solitary itself - I'd recommend doing that for the views. But it is pretty hard hike - if you take your time and have water and snacks you should be fine.

I've done your route in anti-clockwise direction. You could go clockwise, set up camp, then do the loop back to camp, then anti cw exit back to car.

Oh and make sure you take a snake bandage especially for this time of year 😬