We are a fairly fit couple aged 67 & 72 who are planning a long trip to Aus. in March/April 2019. We are looking for a tour which can take us from Alice Springs to Darwin to include the Uluru, Kings Canyon area then going up to Darwin seeing Katherine Gorge, Bungle Bungles,etc. We have already been around Kakadu so are not looking to include this area. We are used to camping so a budget trip is what we are really looking for. I have spent ages looking for such a trip but the ones that look interesting are for under 50's!! Am I expecting too much or should we just hire a motor home? However, the thought of all that driving doesn't really appeal. Any help would be greatly appreciated.