You can get a remanufactured 5.4L 2 valve engine with a 5-year 1 million mile warranty for 3,200 for a long block. All the parts that tend to fail have been upgraded so that you don't get the timing failures and any other potential failure points have been addressed. $1,000 to get that swapped over and you've got $8,200 into a very nice truck. In today's market that is a steal for a 4×4 all day long . A good detailer could buff that paint job out and make it look like a million dollars. Powertrain Products is the place I looked at that engine.