I got yesterday from a friend an motherboard-bead iBook G4 12" 800mhz model for spare parts, so i used it as a practice model. Most of the screws from the bottom were missing already so it was bit faster to open up. If really needed, can use some spare parts later, display, plastic parts, power connector board (if it works). HD, memory, airport were all removed.

The opening up is not that bad, just slow that's all.