Search "ignition condenser", $3 tp $12 depending on the glitz factor. Cap failures haven't been my experience. It also makes things a lot easier if you put the cap near the coil. It's easier to access, de-clutters the points area, it doesn't get baked or vibrated as much, and absolutely doesn't care electrically. Keep things simple on your dinosaur. It's pretty fool-proof to carry points & condenser on a trip; basically the entire ignition system in the palm of your hand for $30, IF you even should ever need them.
I had to detail out the points maybe once each on my machines, made sure the wiper felt touched the point cam and had a bit of oil on it, verify the advance unit worked smoothly, then moved the condenser up by the coil away from engine heat. On one the factory felt had dissolved, so a scrap of wool sock and a bit of needle-nose pliers work and she was better than new with a custom merino wool wiper. After that, other that peeking in periodically to see that all looked clean, no humidity, boogers, oil or grease on the points it's been smooth sailing.
There are an unlimited number of machines out there that have been designed & built long after these dinosaurs were thought into existence in the 1940's. They presently sport appliance like reliability, svelte handling, real brakes, more than adequate power, tubeless tyres, real electrics, EFI, ad nauseum. They are unquestionably better at reliably carrying you about, as well they should be, having the benefit of an additional 60 years of engineering behind them. The average modern 250 has more zip than these old girls, and they are mostly just gas 'n go for at least 60,000, maybe even 100,000 miles with regular oil & filter changes.
The Bullet gives you an affordable opportunity to really see for yourself what it was actually like to be a rider in the '40's & '50's. These guys rode everywhere, in practically all weather & terrain, and did it with the tech of their time. We've all read about the globe spanning trips that have been made in years past on essentially the exact same machine found in your garage. It works well enough, but does demand more of the pilot. Unless you are building a high performance race engine, points are good enough and maintain the '40's motorcycle experience.