2002 Chevy Silverado 1500HD Crew Cab 4x4 6.0l

2002 Chevy 1500hd 4x4 . 6.0L 8 lug axles . This truck had the engine rebuilt but the guy who did it did not put new lifters when it was out. The truck runs really good and has great oil pressure but there is a noise from the lifters . I have had this truck for 4 years and it has made the same noise the whole time I have had it . It needs to have lifters installed and I have put so much money and parts into this truck already and the guy that did the rebuild closed his doors and is nowhere to be found but I don’t have the time to finish it. The new engine has about 500 miles on it and there is receipts for the engine and all parts replaced. New parts are ….. Battery Water pump Exhaust manifold Exhaust manifold bolts Oil pump Flex plate All new seals .. rear main,oil pan,valve cover etc. power steering pump/ reservoir Gearbox Pitman arm Idler arm and bracket Spark plugs and wires Carrier bearing for driveshaft Brake pads and discs about 5,000 miles ago front/rear Upper steering shaft and bushing Control arms, tie rods about 5,000 miles ago I’m sure there’s allot I’m forgetting but I went through the whole truck and did everything it needed the interior is clean .no rips in the seats or stains. Has a touchscreen head unit and upgraded stereo system (ask for more info ) it has a clean title and only 150,000 miles on the body I’m just testing the waters to see if it’s worth putting the time into fix it or sell it as is .. shoot me an offer ask any questions. Ask for more pictures