Newby wants to know

[99Sierra2500]

I went and looked at the complete 4x4 truck and had two concerns. Possible frame twists the way it was rolled and being a 2008 LS with all active management crapp. It had a lot of oil on one side of the motor that looked like it had been there a good while. It did start and go into gear but had no windshield so couldn't fully test drive. Just too many red flags to gamble on

Yeah, you are right that is probably a no go then.