Need to replace engine. Looking at remanufactured Engine. Any advice?

Maybe a little high but if labor is already included, it is not ridiculous. Call around and look for a $4500 price with labor included. Here is replacement engine costs: http://www.autozone.com/autozone/parts/2000-Chevrolet-Impala/Engine/_/N-jdz5uZ9enw6?filterByKeyWord=engine&fromString=search

WHERE IS THE MOTOR FROM? IS IT A DEALER MOTOR? APPROX 5000.00 IS A FAIR PRICE

It may be cheaper to get the one you have rebuilt. Google a good Mobile Mechanic,and ask for a quote from them. Chances are to get it rebuilt might be cheaper than a remanufactured one, remanufactured means the engine is already rebuilt. You can get it done for less than 5,000$