I live in the fort worth area and just bought a complete 2003 silverado takeout 5.3 with the 4l60e for $1500 with 80,000 miles. You can buy these 5.3 engines alone all day long for $250.00 without accessories and brackets, but you have to make sure you're getting a 5.3 not a 4.8 and you possibly might not know the mileage or the vin code. Anyway, good luck with your project.