I bought my SVX with 95k on the clock. The transmission lasted until 130k and the front rotors are still original.
So, if the car was cared for properly and not beaten on a daily basis, it should be fine. Make sure you don't just take the owner's word for it that the car was maintained - if they didn't have it serviced at a Subaru dealer (where you can have the history printed up), then make sure you see records. 'Oil changed every 3000 miles' isn't good enough.
