Here are the main internet circuit diagrams I used. Delayed Re-triggering LM556 555 and 556 Timer Circuits-Diode placement
This circuit is drawn right-side-up, looking down on the chip. When you flip it over, it's best to redraw it.
Most of the parts (except the diodes which are common and cheap) are in this digikey list. The switches are the same model as a 2k5 intimidator board.