Are you specifically looking for a S/C version? If not, for 16k you should be able to get into a good spec Vogue SE 2010/2011 4.4 diesel if you're prepared to be patient and look around for the one that suits you. 2021 D350 Fifty Edition - Carpathian Grey
2017 4.4 SDV8 Autobiography (2021-2024) - Santorini Black
2012 4.4 TDV8 Westminster (2016-2021) - Santorini Black

Just a bit more info the 4.2 is pretty much bombproof mine is on 155k and compression is still right up there and as far as I know there are no issues with it as an engine.
WhenI change it will be another petrol