"there were also problems with the ballast resistors (1970 through 1983) burning out and making it impossible to start after running until the ballast was replaced."
A clip lead to bypass the resistor would get you at least to the nearest auto parts store without doing any harm. I have had it crap out on me on the freeway. I drove 20 miles home on a clip lead without a problem. I replaced the resistor the next day.
-Don- SF, CA