decrescendo wrote:
Is it worth paying a local computer repair place $100 for an initial diagnostics test and then $100 per hour for recovery?
No, it is not. You should seek a professional company who specialize in Data Recovery. Your local computer repair firm may be able to run software, or even change a PCB but very likely is the chance that they will have very minimal experience and even less success with serious HDD failures.
If you HDD does make 'a few odd noises' then this is concerning and you need to make sure your case is being dealt with by somebody who can give you the result you need.
decrescendo wrote:
Is it something so cosmic that I would never be able to pull it off myself?
Taking into consideration everything that goes into a thorough diagnostic and repair process, yes.