available from most good stores. purchased mine from JK 10/10 http://www.justkampers.com/shop/pertronix-ignitor-kit-for-009-distributor-j11677.html cost £72.00 very easy to fit. just follow the instructions that come in the box here's the expensive box remove points and condensor fit electronic ignition with the screw supplied red wire to + of coil, black wire to - on coil refit and set timing
I am going to be attempting this job shortly, there seems to be a vast difference in price with the manufacturers, so far i have found from just over £20 to £70 and also seen the whole distributor package again a vast difference in price from £90 -£205.
acuspark is 60 quid for the dizzy or 27 for the bit you change tor the points it worked fine in the bug and the bay rich