I'm looking to get back in a duramax. I've set a personal budget at $11,500 but preferably 10k or less. I'm looking at an 02 ccsb 4x4 that appears to be in good condition but is making oil and rough idle. Asking price is 7500. Another 02 I'm looking at is very sharp same setup but supposedly no signs of injector trouble. I'm kind of torn on which way to go and both are 3.5 hours away so I can't just quickly check them out. I have installed injectors 3 times in the past so no big concerns there. Thoughts?