Have not had a lot of time to monkey with the bike over the last few days, but did confirm that the two “snipped” wires sticking up by the headlight ARE the front brake light wires (the front brake light switch is missing – a replacement has been ordered).
Took the gas tank off (with only a tiny bit of spillage) and can now set about dismantling the carbs when it’s a shade warmer in the garage.
I’m still waiting for some supplies to arrive in the mail, and have ordered a few others in anticipation of the work ahead. Just waiting on a few days off and some relatively nice weather.