I think you got it all wrong
we are talking here about a disk who fell
so, most likely you'll have to replace the HSA, which I find it hard to believe that you gonna pull it off
not to mention the tools and knowledge you'll need before AND after replacing the HSA
and even if a miracle is gonna happen against all odds - which i find it very hard to believe - and you'll get to a stage that it's gonna recognize in BIOS, it will not last that long to be able to take out your data.
and if the miracle will - for some reason - continue, it will die much faster than you think.
and if the miracle will continue, then go buy a lottery ticket

instead of wasting money on a donor, send that amount to my paypal
it has the same effect on your side.

(joking of course)

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Adatmentés - Data recovery

Thanks for the encouragement if I win that lottery I'll give you a part

@revis, when you had the cover off, did you try rotating the platters by hand? (I hope you didn't touch the platters.)

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A backup a day keeps DR away.