I'm currently restoring a Hurricane and have got to the stage of putting a loom in. I've got 4 different looms to choose from but have opted for one from a Spitfire 1500, based on condition and one or two other factors. The car is largely based on a MkIII Spitfire with 1300 FD engine, and alternator. I'd already bought a coil for a MkIII and was planning to use that, but I'm a tad confused over the whole issue of ballast resistor and coil. The wiring diagram in the Haynes manual for the relevant 1500 shows a ballast wire running from the coil to the ignition switch. So, can I use a coil from a MkIII, or do I need a different one, if so, what? Or should I replace the ballast wire with ordinary wire? Also, are there any different types of starter solenoids? I have a new 4ST in my spares which I was going to use, is this going to be the right one for the job? Thanks