The dismantling continues (albeit slowly as it’s freaking cold out there), The condition of the electrical was unknown as the bike hadn’t had a battery for some time. Visual inspection of the accessible wiring showed it in good condition with no obvious issues. A multimeter across the battery connections showed no dead short, so I cautiously hooked up a new battery (found at Walmart of all places) and turned the key.
Amazingly all the bulbs seem to work right out of the gate. Headlight, taillight and indicators on all four corners. Turn signals do not flash (dead relay?), horn honks and the neutral light turns on and off when the bike is put into gear (I also love the fact that the high beam indicator is a red light on the top of the headlight housing).
A replacement tail light cover was ordered as the one on the bike currently is broken.