VRSIK.. your best bet will be to try our subaru forum for used parts.. and again, they are hard to find..
the fog cover, you will have to buy them new probably. or copy.. because they dont come with the car, and people that bought them, I dont think that they want to sell them..
You might find the clear corner from someone that have put some clear on the car.. and for the head light.. good luck for that also..