Here are links to some of the tools I’ve found useful when working on vintage machines.
This long Torx T15 is the perfect length to get into the screws under the handle of a compact Mac. Additionally, the handle gives excellent leverage to twist out particularly sticky screws. Oh, and it’s cheap as chips.
This is an excellent sub-$20 tool kit with just about any bit you could possibly ask for. Even better, the screw driver is extendable! It has a handy re-magnitizer included to keep your bits magnetic, and has a selection of plastic spudgers and bits to get those pesky plastic tabs separated.