Howdy Dale! The capacitor (condenser) I've developed may help some with things related to the distributor. On the generator, you could attach a .5 uF capacitor to the arm. lead (and to ground) and you could also attach a .5 uF capacitor on the battery lead of the voltage regulator (and also to ground). Might help. A lot of the suppressors sold since I was very young are small cans filled with pure snake oil with some wires sticking out of them. I've also seen capacitors attached to the hot side of the coil...not the side wired to the points and also capacitors on the ignition switch where the hot wire connects. Truthfully I'm not all that certain any of this stuff did that much good. Using resistor spark plugs generally does help, however.
As for the antenna, I don't know what you're thinking nor what you want to accomplish. A lot of people (me included) run these underneath the vehicle, attached to the frame and running parallel to it...so that nobody sees them. What you have to realize is AM radio isn't much these days and certainly nothing like it was even in the 80s.
