Seems a bit steep, hopefully the rest of the car is in great condition... congratulations are in order...
Take it to Naji Kassouf over at Ultra Car Detailing. Have him go through the car with a fine tooth comb. Pricey, but he does good work. He restores lots of cars and has people to go through every system. For your interior, take it to Kelseat. He has a computer that cuts the correct pattern for cars that have come out in the last 20 years or so...plus he has access to the correct leather, velour, etc.