Any ideas from the brains trust for a Wollemi weekend ride??

We had in mind Putty to Dunns Swamp, however the scope seems a bit much and water perhaps unavailable on the way.

Any ideas for a loop or out-and-back, which involve an overnight camp preferably with water somewhere on the way. We have filtration/purification gear so water that needs that is OK so long as not too scungy.

Old trails would be fine, buff fireroads aren't necessary.