Another way to increase the general vault space is to simply remove the quantity cap on those capped inventory items. Seriously, I can have over 2000 armor/weapon parts in one inventory slot but for some reason, they put an arbitrary cap of 200 on the planetary materials?? Same for ammo synthesis packs and whatever else is capped. Remove the artificial cap and suddenly space in the vault or character inventories grows without actually changing the vault! I guarantee no one will object to this and there will be no problems with the older consoles.