Hi, as an update for those who will be reading this in the future....
I elected to change the oil level sensor and gasket. It was the source of my "major" leak. It solved the problem. No more leaks! I also confirm, most of the oil got dumped out as part of the swap. I think about 1 bottle of oil remained, so I was able to save a bit on that.
2014 F06 M6 (oil rig fire)
2012 E70 X5 diesel (oil burner)
2008 E90 M3 (oil distillates guzzler- Retired)
2013 bicycle (oily chain)