1971 Super Beetle Factory Sunroof

I've gotta '71 Super with a factory sunroof. The "lifters" (whatever
they're really called) that pop it up into the final closed and sealed
position are shot. I understand that the current after-market replacement
systems (cable and all) are of poor quality and not dependable. I'd like to
fix the problem. Does anyone have any suggestions? Like where high quality
replacement parts for my specific need may be obtained? Any serious
suggestions will be greatly appreciated.



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Eloquent profanity, it rolls right off my tongue.