Some other items:

Gas exchanger for refilling and transferring gas between cannisters $26.

https://www.amazon.com/Gas-R1-Cartridge-Exchanger-Duralumin/dp/B00TXZ4JUA

Also, I upgraded to the brs 3000t over the pocket rocket to save a little weight $14.

https://www.amazon.com/gp/aw/d/B00NNMF70U/ref=sxts1?ie=UTF8&qid=1477431318&sr=1&pi=AC_SX280_SY350_FMwebp_QL65

And I have an ice axe on my list, but that is a little more niche.