Just got off the phone with Enfield of Fort Worth. Turns out they don't have any of my Electra parts in stock. They'd have to order them from out of the country, so I'm probably best off picking and choosing from those ebay sellers since it might be quicker. (he said 14-30 business days depending on where the parts had to come from).
I've got momentum now for this project so I'm just going to keep stabbing forward and see what I can make work.
In a week I should be receiving a new stronger battery, the coil, and HT lead. I will bypass my ignition switch if it keeps giving me issues, and in the meantime I will try and see which of the ebay options would be best. I also suspect that my right-hand switch assembly might be the root of my lighting issues. I still have that little jumper they put in the US bikes for the 'always on' headlight. I'll throw that back in which bypasses the lighting switch to see if that fixes it. If that fixes it and I get the bike running well, a future project may be to swap out the OEM handlebar switch assemblies for sleeker aftermarket parts.
Fingers crossed i get this rolling in the next few weeks.
Tooseevee, can you tell me which exact Champion plug you are using? EDIT: Is it the Champion RN2C ?
Also, one more question about the coil: Pertronix's website is confusing, but it looks like the 40511 is the Oil-Filled coil, and the 40611 is the epoxy filled one. They recommend the epoxy for off-road vehicles, which a shaky 500 single might qualify as. Should I be ok ordering the 40611? it's still a 3 ohm Pertronix coil. Again, apologies for my cluelessness!
Thanks for everyone's help. Can't wait to get rolling again.
Cheers,
Chuck