Sell MOD kits and/or add it as an option during purchase

Sell MOD kits and/or add it as an option during purchase

I'm more than willing to pay anywhere between 1 - 300 USD. Here are some ideas.
  1. Light weight magnesium alloy shell replacement.
  2. Carbon fiber shell replacement.
  3. Light weight plastics + internal component DIY mod kit.
  4. Cable replacement (lighter, more flexible) with custom lenght and maybe colors?