I definitely would experiment before trying a rare part.
I would keep the rubber away from "the works" cleaner as it is acid, but other cleaners should be fine.
Not tried aluminum, but the zinc will not plate over chrome, it just brushes off in flakes. (This actually comes in handy when trying to repair a small rusty spot on a chrome piece). Aluminum may be similar?
The actual plating solution seems pretty benign to me, and putting my hands in it has had no ill effects, so I doubt it would harm rubber with the limited exposure time. I have seen some attached brake line ends done on you tube, but again, maybe someone else could chime in who knows?