This “C” model came to us post “pre-buy” inspection and a “fresh annual” (not performed by TWE). Initial inspection noted 20 safety of flight issues and other squawks. Silver was also present in the past oil samples, this required an extensive survey and flight hours to determine its reliability. At this point all major and minor squawks have been addressed and so far all looks good. APG also performed extensive avionics work on the airplane, with excellent results!