There is only one way to find out. Well, not just one way, but definately not the most expensive way. Get a timing kit (belt, tensioner, idler, and water pump), install it, try to do a compression test (or just try to start the motor). I did just that. I purchased my 05 with a "bad timing belt". It turned out that the idler pulley had shattered into many pieces and allowed the cam timing to go so far out of spec, the motor would not run. I got lucky. I just purchased a timing kit and it's been running just fine ever since.
Purchased the car for $100. Timing kit from Rock Auto was $125 shipped to my door. Add about $10 worth of coolant, and I had purchased a great running fuel sipper for $235 total.
