A few years back I replaced the metal rollers (badly worn, not reusable) in my 55 bird. Same rollers as manual, but mine are power windows. Replaced all the liners, glass, etc. and carefully aligned everything. They worked great, but one of the nylon rollers failed a year later. I made 2 out of delrin (or something) and replaced it. Drivers side, the one that got used.
Based on that, if my metal ones were good, I’d reuse them, or try to find metal.