The power is whats got me bugged. 
its the GENUINE 3.5 v6 (oh thank god! i thought it was a fake), car is on around 34k miles, but a new engine 6k mile ago, just had a repsray, and now its up for sale? eh ??? 
  
power is typoed ?: 
395.6 
296.4 
^^^ thats 3 out of 4 digits that have changed. 
again as said, where are the dynos. 
theres mention of ecu tuning, uprated cams, etc etc. 
  
soooo many things here that worry me. 
  
i might give the seller a call... just for Shirt's and Giggles.