Thanks for your insight. This is very helpful.

I don't have status with any OW airlines. So my best hope is for T-48. The flight leaves EWR after mid-night, hopefully not too many people stay up at that hour to check in.

The likelihood of all the way in the back was something I did not think about. I don't mind the bumpiness or the last to clear customs, but the aroma may be another consideration.