Newbie just about to pull the trigger on a new to me Subaru

[Casas]

Hi 

my name is John and just about to buy a high miler 91000 outback 2.0 diesel on a 17 plate, should I be worried about buying one at this age and mileage. For me it’s a great car and ticks most of my boxes, the blis light won’t go out on the dash and find it very strange it has a rear view camera but no reversing sensors or am I missing something ? Hopefully I won’t bottle it and not go through with the purchase as I have heard one or two problems with electrics and transmissions plus oil leaks.