I hope Darwin doesn't get involved, Roger.
Here is an example of what I am not looking for
https://www.youtube.com/watch?v=_X_TaSgjnvwThis is more like it, still questioning why this type of saw was discontinued? Darwin stuff perhaps. The concrete/metal saws don't have any base. What comes to mind is a Makita 16" saw but with a chainsaw driven power head.
This could be like the McCulloch you mentioned, Dave.
https://www.youtube.com/watch?v=QUYwKYGBm9EI was cutting a bunch of 6x6 ends and couldn't help thinking.....