Ohh the S80V8 IS AN AMAZING SOUND! Even though not as powerful as my T6 it is way more fun , we have an S80D5 fwd but had a V8 loan on trial before, someone else bought it when we didn't right away!
They come up now and again,may even be one on carsales? The S80T6 in Williamstown VIC is still on carsales, THAT would be brilliant as it has all the fruit and AWD too. Dark blue with black leather iirc, lives near me. We considered selling D5 for the T6......
You would spend more on an XC90 to maintain than a 70 and less again on an S80. (I'll ask missus for you if she wants to sell it.....)