Hi We're (Wife and I on 1 bike) heading off from Adelaide to Perth, and back later this year. I'm just after some info for the trip.We've just moved here from the UK and did a load of touring over there. We toured around the UK, Europe and Africa too, so the basics of touring are covered. We'll be camping most of the time, but probably treat ourselves to a night of comfort once each way. Some things I need to know though please:- 1. What's the best time of year to do this. We're hoping for late August or September. How cold does it get at night. 2. I read an old discussion which said there are gaps up to 200k between petrol stops. Is this still the case (especially across the Nullarbor). And what sort of hours are they open. 3. How regular are campsites. They seem to be quite regular on maps but you know how quickly these things get out of date. 4. How long will it realistically take. We're looking at 3 weeks off work, giving us time to spare and some rest time in Perth too. 5. Any specific tips for the Nullarbor. Any info or advice welcome. Thanks.