If we were suddenly taken with the urge to do this now I wonder how good a job we could do? Maybe a high gamma sterilization to kill off any bacteria in or arou

If we were suddenly taken with the urge to do this now I wonder how good a job we could do? Maybe a high gamma sterilization to kill off any bacteria in or around the body, then cast it in resin; presumably there would still be mere chemical decay paths for the corpses' components though. I suppose embalming would still be the best way...?