I've got spare dizzy cap, rotor and points, fan belt, a length of fuel hose , assortment of bulbs and fuses, some lengths of wire and assortment of connectors.. Think that's about it. I also have a full set of spanners, feeler gauges, screwdrivers, multimeter, wirecrimps/cutters, leatherman multi tool and various 1/4 and 3/8 drive sockets with ratchets.
Reckon I could fix most things at the side of the road, assuming they don't need new parts, never thought of carrying a clutch or throttle cable..