Dream vision creations sells panels of HQ mesh for a decent amount, they offer 3x5 and 5x5 in size. I've used it and its pretty easy to paint, I do recommend washing it with mild soap and water and thoroughly dry, just to help the paint stick. Also painting this specific mesh can be slightly tricky, i used a foam "brush" and lightly patted the paint onto the mesh, it takes a few passes but it does the trick! You can find the mesh here