God forbid! However, making it real: Backhoe and plenty of lime. No body bags needed. Also... make sure your trench is deep and below your well water supply.
Some have suggested swine food. Not me, but just saying.
6ft deep is more than tradition. 6ft deep is how much it takes to keep the smell down and also makes it too difficult for animals to dig them up. Lime is good but not mandatory unless you have to bury them close.
They should be buried at least 100 ft and 200ft is better from any water supply. Downhill from the well is better and not close to a stream.
The bleach is good for cleaning up after handling bodies. Disease will be a major problem.