I have a friend looking at a 2005 40’ Cabo convertible with 700hp CAT C12s. Only has like 1100 hrs on them. One aftercooler has been replaced, the other one is in a crate ready to be installed. I don’t know the story why only one was done. Yes, the easy side was the one that was done. Yes, full surveys will be done. What say those with knowledge of this boat and engines?