Upgrade Lenore's Creative Gear

I'm Lenore, a severely, physically disabled creator of art and stories. I'm desperately needing a new tablet screen and computer as both are essential to my ability to do what I do, and looking for help to make it happen. I am able to use my mouth to draw on my screen, and because I work this way a simple tablet, even pressure sensitive, isn't something I can use. It's kinda hard to see what you're doing when your face is down over the tablet! As for the computer, I work at very large resolutions and use 3D modeling as the backbone of my work, so I need a strong processor, lots of RAM, and a pro-level graphics card.

I'm currently making a graphic novel and am completing 1-2 pages a day most days, but could work much faster with better gear.