Decided to add another two to the list:
Hardxxx.com.........................12 years old
This one is also at sedo if you prefer to make offers this way, link below
https://www.sedo.co.uk/search/details.php4?domain=hardxxx.com&trackingRequestId= 8022280&tracked=&partnerid=&language=e
TopMilfs.com.........................9 years old