Only two real options with the current parts; replate or leave it. I understand your apprehension to replate it and have it sticking out like a sore thumb though, so would suggest cleaning the corrosion off, and then treating it with ACF-50. It won't stop the rust eventually coming back, but will slow the process down so you don't have to continually clean it.

Alternatively, you'll probably need to search Yahoo! Auctions or eBay for one in better condition.

There's probably some ageing process used by the top flight classic restoration guys to get the appearance you're after, but I expect it would be very expensive.
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Andy.
NSR-WORLD.COM

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