To Birdsville or not?

Bob, from experience it's only the last 300k thats a worry. Hmm...yep, but some of them can be pretty rough, depending on when the grader is working I guess.
I know Ruth will have something to say on this one. I've seen plenty of 2wds in B'ville from time to time, but that doesn't mean it's recommended. I've seen that track like a super highway around race time , and also seen it pretty cut up at other times. I'd say that with a motorhome you'd be gambling on the former, and on it not raining.

Take it easy and you'll be fine (provided it doesn't rain) :-)))

If you plan to invite a friend along, that has a Nissan, I'm sure you will be fine. Worst case, he could help pull you out.
HINT HINT.

Cheers mate.

Winnebago themselves took a rally of 'homes through there a couple of years back up from the south.

just drop some air from the tryes, carry 2 spares etc, normal outback prep and have fun. Take enough food water for if it rains

Hi there, well Winnebago did bring some Motorhomes here in 2003 (I think) but I can tell you that the same group will be bringing 50 (Fifty) Motorhomes here arriving on 11 July this year and staying for three days. They will be coming up the Birdsville Track which is approximately 600 klms dirt.
So if coming from Brisbane there will be not quite 300 klms of dirt for you - you can travel anywhere in Australia in 2wd towing anything you like - you just have to drive according to the conditions on the day. And, if it rained - so what - you have a motorhome with everything in it - you would just be bush camping (but in the mud). Don't try and beat the flies - it doesn't work. Cold weather usually knocks them around and as it's 8 degrees at the moment and will be colder in the next few weeks. July is a great time to visit. Travel slowly and enjoy the changing scenery - see you when you get here.

Amen to Ruth's advice - rain aside, it sounds a great trip but can I add to some emphasis on tyres from some ? - they can be such a disappointment in that country - so easy to bugger up and can be a pain to change at times. Suggest you get into tyre pressure management as you go (softed for the stony parts - compressor required for the back-ups therefore) ..... and slow down on those stones - tyres love slower speeds, and you will be rewarded ! Oh.... and in my view.......whatever spare numbers you normally carry for the sealed, you should have one extra for the gravel.