Any good European-oriented auto parts place will have the Bosch copper plugs - look in the Yellow pages.

It is impossible absolutely positively impossible to sync up the carbs with a dead engine. You basically need to work through the ignition problems before worrying about the carbs.

There are two small wires posts on the starter solenoid. Get about a six foot length of wire with aligator clips on each end. Clip one end to one of the small posts and touch the other to the positive terminal on the battery. If the starter does not engage, try the other small post.

When you try to start the car with the carbs out of adjustment and the engine timing suspect, you may get a backfire through the carbs. This can cause a small fire, in the carb, so be sure you have a rag to smother it and a fire extinguisher handy. This is not a big deal if you know what to expect.

Good luck.

Chuck