That's a truly fascinating project. The one amazing thing about digital restoration of old art and photos, as compared to physical restoration, is digital's immediate access to the "original" pixels for cloning, so bad spots can be filled in and covered up with the actual colors and textures from the original art. You've gone a dimension ahead of that by pre-fixing new art, which suggests you may be working in a different time track than other people. By all means, pursue this as long as you can - this may well be the next phase of art itself.