The wires around the steering head are a weak point, that's why I asked about the mileage.
If the wires bend at one spot the copper work hardens, goes brittle and snaps, I helped my riding buddy with his 70s Kawasaki, it had 4 broken wires. It's quite easy to find them, just reef on them one wire at a time and they will give at the break point.
It's best not to strap them together tightly where they flex just leave them gently twist over several inches. that way as one part of the copper goes hard it distributes the flexing further along, just like a bad back
Really, I think the connectors are just there to help Luigi assemble the bike, when do you ever need to unplug them, nothing wrong with just splicing the main loom to the headlight etc.
If you have headlight relays in the bucket an old computer mouse or keyboard cable is great for wiring to the switches. I say with relays because I wouldn't like to run 5 Amps through it, fine for the 100mA that a relay coil draws
Don't worry what it looks like but for gawds sake no wire nuts LOL
Another thing I like to do with an older bike is add a fat fuse at the battery to the red wire feeding the ignition switch, all that un-fused wiring makes the sparky in me cringe.
Fusing the red wire has a bonus, it's a great source of high power at the headlight bucket for your headlight relays, don't even need fuses at that end