If you can find a Metro with the electronic setup (most 1275s after 1985ish I think) then as far as I know all you have to do is swap advance weights (not necessary, but means you keep the original mech advance) and the drive on the bottom of the dizzy (swap it for the one off your old one). Then a small bit of wiring, get the right coil, and you're away
At least, I think that's how easy it is going by what was said on another thread a while ago. Means you'll have a small box on the side of the dizzy, and of course the dizzy itself will look slightly different, but there's no wires all over the place or control boxes to try and hide.
I've yet to use a starting handle with the bonnet down, so far I've been careful to peek into the engine bay as I line it up till I get used to it. But it must still be rather unlucky to put it through the rad
