I'll note that the parts list was arrived at by drilling holes in the ship and doing spacewalks on the hull, since the crew doesn't have authorization to board the ship yet.  (for fear of traps)  They also found a person nailed to the cross on the prow, though he looks dead.  Standard procedure in this situation is to rip apart each section of the ship and vent the atmosphere as quickly as possible, to kill any remaining survivors.  The salvage system itself is equipped with a variety of chemical weapons to "disinfect" any recovered ship components, which is usually the first step of cleaning for re-installation