Not all VIN's were affected by the messed-up balance shaft, but yours is in the time period when that was a problem. I'd first check your VIN to see if it's got the problem. If it does, then yes, start saving up. A dealer would probably install a remanufactured engine, at high dollar; an independent shop would do a used engine from, say, a 2009 or 2010 car.
How did you score this car for $740?
How did you score this car for $740?