Anyone ever try rebuilding an ignition module?

Pretty much "can't" I've dissected several to try and perform a "cause and effect" autopsy, with various results. Easy to damage stuff trying to get the pot material out, depending on "what" the potting "is."

If you want to "keep the look" though, you COULD gut one out, and shoehorn a GM 4 pin HEI in the box. My understanding that is it FBO? sells one that is essentially that very thing.