Are you planning on staying in a caravan park or freecamp?
Not been to Lightening Ridge but have been to Broken Hill/Silverton and it was great.
Are you planning to stay in LRidge for the whole week?
We are in Central West NSW and we usually head Vic way, have been down the Murray as far as Swan Hill and want to go further towards SA next time, also been to Deniliquin on the river (beautiful) and Abercrombie Caves but not enough to do for a week there though it was stunning and would be absolutely FREEZING in June hols!!!!!
also been to Lakes Entrance and Metung and heading to Mallacoota in Oct long weekend for 5 nights.
Its a great forum here with heaps of knowledge. I have found it a great help and someone here will have some info for you.
Any other places you were thinking of?
Hope this helps a little????