Noob Restore Questions:

Heyo all, giving a go at my first restore on a 2001 GT Fly I picked up off a coworker for $20. Just have decals removed, need to remove several more components before stripping the paint. 1) does anyone know if there's a computer program that exists to help mix and match patch parts and colors and such? And 2) other than YouTube and DansComp what are some good resources for parts and restoration DIY stuff? I hugely appreciate your help in adavance~ 🤙