Tbh I would like to see some calculations of how much helium there is in the drive, a quick bit of napkin math makes it seem like you can make around 5*10^10 dr

Tbh I would like to see some calculations of how much helium there is in the drive, a quick bit of napkin math makes it seem like you can make around 5*10^10 drives with the gas from a single field in the US on a single day, assuming that it is at 1 atm pressure, though I don't think that would move much more than one order of magnitude at most. Though your other point still stands.