My opinion: I think you can safety get rid of the bear cannister. Those three established campsites on the Pemi Loop I mentioned all have bear boxes you can use and any bear issues tend to be at those sites (hence the boxes). Hanging food bag from a tree otherwise has always served me well in the Whites.
Your spikes will likely get a free ride. Keep an eye on https://www.mountain-forecast.com/ and if the weather looks decent I would leave 'em behind.
As always though, hike your own hike and do what feels best!
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