Luddite, like you I also travel with spares under seats etc. I carry bits of tube a length of twin cable with crocodile clips on both ends, fuel pump and a coil pack with the two longest leads etc. I have never used any of it.
Yes my car is a 1985 +8 inj. it started with the flapper system but I ditched all that Lucas junk when I rebuilt the engine (4.8 litre) it now also runs coil packs and a programmable fuel and ignition system
. 100% reliable and future proof.
DB