A guy I know has a 430D 72" side discharge for sale with 2280 hours on it and he claims it is about 6 years old. He wants $4k. He says it is works well, cuts smooth. It is at a professional lawn care service where they maintain and use it for their larger customers. Pictures look a bit rough. What do you guys think? Price good? is 2280 hours too much to use as a dependable machine for a 6 acre lot? I know the engine will last forever, worry about the hydros and such. Thanks in advance.