I bought a 5' KKII this past spring for about that price. Based on what I saw at that time, it was a good price. It was not a problem to use it to make a garden out of an area that had been yard for 20+ years. I ran the place with a disk twice, then tilled it. I'll know more about the hardiness of the unit in a couple of weeks when we do food plots.
Have not had to deal with parts issues yet. However, isn't KK in north central AL? Not sure where in TN exactly you're located, but if the dealer has trouble getting parts and you're in south central TN, the factory may be an option.
And, like others have said, I've yet to see a KK implement that had decent paint.