I'm looking at buying a 2000 2500 (non HD)extended cab short bed. It has the 6.0, 3" Body Lift, 33x12.50 tires, step bars, bed linerand tool box. It has86k miles, isvery clean, and he is the orginal owner and said he has had no problems with it. One thing I did notice was when it got over 50 mph it would start to shake, as if the tires were not balanced correctly or something. He is asking $10,500 and said it is negotiable. I plan to put some more money into, exhaust and some other performance stuff, along with a suspension lift in a few years. After doing a little research on parts, I found that some places didn't have this year and model, are all parts harder to find for this?

Anyone have any thoughts?