Hi and Welcome to FOG!
The 2.5 is a reliable motor. It shares running gear (Brakes, steering, drivetrain etc) with other models of a similar year.
Engine wise the only 3 things to watch out for are the number 1 injector with built in sensor, the viscous fan coupling and turbo gaskets.
Gaskets are easily available and inexpensive.
No 1 injector can be relatively expensive, around £200 if I remember correctly.
Viscous fan clutch is no longer available from VX but a readily available alternative has been sourced quite cheaply.