[Username1]

For the noble gas idea to work, you have to know what the oxides will do with those gases present, and know for sure nothing bad can result as the moisture will remain because you have done nothing to deal with it. Bringing a HVAC vacuum and 90 degrees heat will cause the moisture to boil off as its boiling point is greatly reduced. Then if nothing more, you put the tube in a very thick heat sealed bag with a desiccant inside the bag of sufficient size to do some good, and then keep an eye on it as they change color with moisture (as they absorb it). How will you know if the noble gas leaks out ??

There is no reason why people here can't build a drying for storage box where you mail it to whomever needs it, and heat and vacuum the tube for storage, then bag seal it with desiccant for long term storage. You could get a local HVAC guy to run a vacuum on it.