Hi,
have a look at
http://www.autoteile-legan.deor just write an email to:
info@autoteile-legan.deIncluding shipping it's probably not way cheaper than when you buy the parts at your local dealer. In your situation I would buy two new sensors (ignition point and speed are absolutely identical - buy the cheaper one twice!) and replace them in one of both cars.
Then you take both old speed sensors and trash the ignition point sensors and put them in the other car - et voila, you most probably saved 200 bucks (for now - sooner or later the old ones will also fail).
Don't be confused: When the engine is _not_ running, the speed sensor will _always_ be stored in the fault memory. The correct way to read out is to ignite, start, stop starting and to not turn the key back. When you read out the codes then, you see if the speed sensor is really broken or not.
Bastian