I'm about to fit one to the 2.7, I got the filter adapter and cooler with the oil lines. I bought all the o-rings and mounting brackets/bushes etc fro the dealer for Ԛ£16. I already had the plastic grill for the front valance, if you haven't got one they are Ԛ£8 from the dealer.
The cooler was blocked with manky old oil when I got it so I flushed it through with diesel and left it overnight to soak. In the morning I flushed the diesel out and dried it with compressed air. No restrictions now
Will let you know how it goes
Cheers,
Iain T