Zenesis tanks come with quartz tanks. They are also not that great and are prohibitively expensive. You can look at the video that Estarra, an ECF member, has produced here on this subject:
Z-Atty Pro (House of Hybrids) - YouTube
Also the Vivi Nova comes with a separate stainless steel tank that you can buy and it fits any drip tip that you can find, i.e. glass/pyrex.
But seriously, I'm a vegan who used to smoke (smoking came first, then veganism) and I can tell you first hand that she is taking it way too far. This is well beyond the normal conversations that are appropriate for ECF and I do apologize, but also I feel I need to add reason to this logic. Bear with me. She drives a car, I presume, uses a computer with the internet, drives on asphalt streets, lives in a house that is chock FULL of artificial substances, etc. There is no way to escape artificial substances, nor should she want to unless she wants to live in a cave.
Being a vegan is not about not using things that are natural, that's a cavemanism. It's about not EATING things that are animal based, such as meat, drinking milk, eating butter, eating cheese, and some even go so far as to consider bees as animals and not eating honey. This is not veganism this is, in my opinion, psychopathy. Tell her to read "Skinny B|tch" and settle down. 10 and 2. You can't escape technology. The whole concept of veganism is that humans, when matched up with carnivores or omnivores, display almost NONE of the physical characteristics of these types of creatures. For example, carnivores do not sweat they hyperventilate (see also: dog panting), have a high stomach acidity (your dog can seemingly eat anything!) , and they also have short intestines (dogs poop a lot). Humans have long intestines (some people poop once every other day or more (scary!), have a stomach acidity that is closer to PH balanced than acidic (i.e. CAN'T eat anything), and sweat (instead of pant for heat regulation). These are characteristics of herbivores. You'd have to do a google search to get a complete list, but suffice it to say, we are herbivores whether people want to admit it or not due to their current bad habits. In fact if you want to test this theory eat some corn and look at your poo and see how long it takes to pass. If it takes longer than 24 hours or so you are constipated and are at high risk for colon cancer. Carnivorous humans enjoy a 60% higher risk for colon cancer, as a matter of fact.
I don't enjoy plastic either but we have to live with it. Restrict its use to all things not related to cooking or food and you'll be just fine. BPA is in a majority of plastics but you pee it out in a matter of days. Handling it is usually not the source of BPA, eating and drinking out of plastic is. Tell her to only use glass, or ceramic/earthenware bowls/plates like I do. Get a stainless steel canteen and drink your filtered water out of that instead of plastic bottles. That is the best you can do without reverting to prehistoric times.