It is hard to understand why someone working on an historic vehicle worth 10-15 thousand dollars (or more) when finished balks at paying a little extra for a quality part. If you can't afford that new whizbang right now, wait, and save some money somewhere till you can, and do it right. In a year you won't miss the money, and you'll have the proper whatsit on your car. Buy quality, and buy it once.
But too often, we don't have an option for quality, but still need the part. So we rework or make do with what we have, or restore when we can. Even restoration can be problematic, as we all know, because certain things just aren't possible.
It is especially frustrating that we can't get properly nickle plated repro parts that are otherwise serviceable, such as radiator and gas caps, head- and taillights, oval headed screws, interior door and window hardware, and so on.