I found a decent 4710 with poly tank and plumbing. The machine has 3700hrs, 80ft booms, and the starfire dome but no screen. The owner was asking 65k and I told him if he'd take 55 we would take it. I was wondering if there is anything to really look for or if that is even a good deal. I am suppose to call him back tomorrow. Thanks for any help or advise.