Reddit mentions: The best drafting tables

Personally, I enjoyed the capability of my table-top drafting table that I ended up giving to a friend, but that may not always be the best suited since you either need a table or a somewhat stable surface to sit on (can work laying over your lap on a couch, for instance).

I always thought having a collapsible drafting table (stand folds up; think TV dinner tray), that would stand on its own, and be sturdy enough to not move when in use (locking positioning will be crucial). Given the fact that she paints, glass is probably the best idea. Also, angle adjustment will likely be very important to swap between a building surface for models, and a drafting surface for drawing.

This was the portable drafting table I had.

This is more what I always thought would be awesome to have, but it doesn't have the attached straight-edge; which I would deem necessary, but your girlfriend may not.

Hopefully those examples can lead you into building something appropriate.

Best of luck and have fun!

I forgot to tell you, for the desk, I've recently bought something like this, which is really great, but if you need something cheaper, a drawing board is fine too, I've got one large enough to support my a4 sketchbooks, it's good placed on a table or even on your laps.

I use an anycubic photon and it pretty much has to sit on a table by itself - noise, smell, fear of disturbing the print, etc

I use this for painting station and works great. Next step is a rack for all the paint on the wall

ZENY Height Adjustable Drafting Draft Desk Drawing Table Desk Tiltable Tabletop w/Stool and Storage Drawer for Reading, Writing Art Craft Work Station https://www.amazon.com/dp/B077X73CMC/ref=cm_sw_r_cp_api_i_rQ4yCb88KHT51

Just my 2cents, curious what others use, also

It is a cheap Martin Berkeley drafting table that has adjustable legs and an adjustable surface area.

EDIT: better link

You want a Drafting Desk, not a standing desk.
These are what architects use to draw/review their plans/blueprints.

ZENY Height Adjustable Drafting Draft Desk Drawing Table Desk Tiltable Tabletop w/Stool and Storage Drawer for Reading, Writing Art Craft Work Station https://www.amazon.com/dp/B077X73CMC/ref=cm_sw_r_cp_api_i_hFVlDbF36J14B