Newb to the beginner of Game Cube Modding with questions

[Oxalic32]

Well i was recently considering buying a gamecube and modding it, but i still have many un-answered questions

1. What gamecube should i buy?
2. What items will i need to mod my game cube
3. How do i back-up game cube games?
4. What type of media will i need to burn the games
5. Is it pricy?
6. Does the freeloader also load back-ups ?

Well if anyone could answer these that would be great.