Thanks for your response Adamsy. I don't think your TASMANIAN experience is relevant. If your dash becomes too hot all you have to do is REDUCE the temperature of your aircon. There is no comparison between the summer temps in Tassie and that of Qld. As for the vast majority of satisfied 40 series owners, we are up to page 7 on this forum and this is only one of many with other topic headings, just on this website.
I believe Toyota could have handled this issue better.
However, as I've said earlier, I am now going to stop "sooking", suck it up and repair it myself. My car has relatively low k's, I love it and can't find anything else I'd rather have, without paying squillions of $.
Thanks one and all for your input.