OK but what about actual equipment? I know I've already asked similar questions but I just want to be sure. Is it legal to transport? Should I use something like a medical-grade cart to keep it upright?
Just keep it padded and concealed, as suggested by Smilla. Do you think blue-collar welders care much about handling? --they fling and toss the thing around, all day long. Legal? Again, you're already breaking the societal "norms" of your haphazard sociocultural era (a single era out of many... defined by a few decades at most). You're a rational agent on a moist speck of dust, in a perceived infinite dust vacuum... who gives a damn about human "laws?" Hell, I've got a nitro rig as a backup/standby method... it just pains me to see others struggle with what I have disregarded so easily: assignment of relevance/significance to human "laws" of any given arbitrary era of human civilization, going back
centuries
"What makes a freethinker is not his beliefs but the way in which he holds them. If he holds them because his elders told him they were true when he was young, or if he holds them because if he did not he would be unhappy, his thought is not free; but if he holds them because, after careful thought he finds a balance of evidence in their favour, then his thought is free, however odd his conclusions may seem."
—Bertrand Russell, 'The Value of Free Thought: How to Become a Truth-Seeker and Break the Chains of Mental Slavery'
There is but one law which governs all humans, living
and dead: The 2nd Law of Thermodynamics
A painless, peaceful, pleasant death is your right (regardless of what other apes may tell you;
when/where/how is up to
you)
as I'm sure you're aware, your tank has quite the shelf-life (so you are in good hands with the inanimate tank + the expert advice of Nitschke)
Best Wishes