I've never seen the part you require being available separately.
One possible option might be to scavenge this part from another old turn signal switch assembly, if you can find one (failure of the headlight switch contacts is a common reason for replacement). I can appreciate your preference for just replacing the damaged part - I'd have the same approach.
However, these column switches (the correct term to use if looking at parts suppliers w/sites) are not too expensive e.g. vickauto.com currently list a unit (on sale) that seems to be suitable for your car @ $79
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Also, midwest-bayless.com have some starting at $97 (and they're located in
Ohio).
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