I now carry in my car the following; crank sensor, MAF sensor, Delco coil pack, alternator, serpentine belt, both the correct length and the bypass belt. Extra fuses and relays.
In the parts bin I have almost too much stuff. More of the aforementioned trunk stock, EGR valve, brake pads, rotors, front/rear wheel bearings, wheel speed sensor, rack and pinion, struts/ strut mounts both front and rear, tie rods, ball joints, power steering pumps, Teves pump/motor, pressure switches, accumulator ball, freon, all the silver boxes, CRT, IPC, radio, temperature control module, blower control module, oil/air filters, spark plugs/wires, headlights/headlight motors, bulbs, all tested and ready to go.
I'm sure there are more things I have but I don't like being down long as I like to think I can drive my car every day.
Another item I am considering stocking is the drive shafts as I'm sure that will be another item to be discontinued.
If I did stock those that would really ease my mind about parts being discontinued.