First of all I want to say thank you to the forum members who posted a reply to my questions. They were really helpful (except the "political" contributions of WWS and WT which I am not going to comment).
Hi Cliff - special thanks for your offer to lend out your guide books, but I don't think this will be necessary. I have ordered the "Blue Mountains Guide" and "Sublime Climbs" for Gramps/Araps from a British bookstore because postage is cheaper. This way I can study the areas and the routes before our trip - and look forward to it.
As many of you suggested a longer stay in the Gramp/Arap area we have changed our travelling schedule a little bit: at the end of out trip we will spend 1 week in Alice Springs and 1 week in cairns, This means we will have 6 weeks for Gramp/Araps, Ocean Rd, Sydney, Blue Mtns ans Pt. Perp.
Hi lacto - thank you for the info about the toll roads. We will be careful. We have booked a Toyota Hitop campervan from a company called Britz for the 1st 6 weeks.
Hi H9 - I know that March/April is autumn in OZ - when I wrote "spring" I was referring to Europe. Btw, we had a real good start into the skiing season here with lots of snow in November. (I was just going to add a few fotos, but then I read in forum directions that this is not really wanted).
Bye for now. Looking forward to hear from you again.