1997 ski doo summit 500

Okay well, Was gonna buy a 05 800 summit, But my brother decided not to sell it. But I have found a 500 ski doo summit, liquid cooled, I believe 136 track, Has 2200 km's. Saw a picture and video looks and sounds amazing. He wants 2200, My friends dad called the guy about it and said he would go down to about 1700 or 1600. Wanna know about any major problems with this sled? I know some about sleds but not exactly an expert but have been told this would be an awesome little sled. Please let me know, I am planning on calling in the morning. Thanks guys

1997 ski doo summit 500