There's 3 ways you could go that makes sense. Before that, get the rotor rewound as Marty says. It's old and prone to (age related) failure. Going with a TCI capable rotor gives you more options. There's a guy down in Ga that rewinds 'em as well as me. Last I checked, my service is cheaper. I believe Marty has his contact info. Both of us have a good record/reputation.
Either way you go, I'd highly recommend starting a trip like you're planning with a fresh rotor. One less thing to worry about or pack spares for. Anyway, on to the three....
1. Points only: Install new (OEM) points and condenser, and replace the coils with more modern ones. As Dogbunny says, points don't really fail, they're about as simple and reliable as you can get. Stone age simple.
Spares would be easy to pack for 'cause they're small and light.
Fwiw, back in the day I took a points XS on multiple trips 'tween Fla and N Mex. Never had a minutes trouble with 'em.
2. Convert to TCI: You'd need a TCI rotor and stator, and a TCI box. So this isn't going to be a cheap option, but it's the best in my opinion. The stator is almost bulletproof. The rotor will need replacing with the TCI capable version... and the box is light enough to pack a spare... or you could carry a few Gonzo boxes. Marty knows a guy that reconditions the boxes. Do all that and you'd have a set and forget system, dead reliable system.
3. Do as you suggest and wire the bike for both systems. I have a test run engine that I've done exactly that to... points and TCI. Switching 'tween the two involves flipping a toggle switch and swapping plug leads. About a 30 second task. Mine is that way for testing purposes, but it's easily doable to any bike.
Good luck whichever way you go.