Ever not have a C-clip tool, force it open, mangle it, decide you're not ready to go further, so you re-shape it back around its post with pliars just to keep everything together? Why yes, I did that tonight, however did you guess?! Every time I think I'm ready to venture further into really gutting a camera, something pops up to stop me! So what else am I going to need just to disassemble, inspect, and reassemble the basic Canon camera (used A-1 in this case)? Other than C-clip tools what might I need that isn't found in your regular tinkering tools?