Whatever you do, keep copies of the recovered wallet.dat files indefinitely. Just because you can't get it now (unless you end up being able to), doesn't mean you might not be able to do so in the future.
For example, depending upon what has been recovered from each, you MIGHT be able to combine the two into a working one. Likewise, you might be able to recover part of your private key (or even all of it) eventually. Or, tools may improve. Either way, if you are not able to successfully recover something now, doesn't mean you won't be able to do so in the future.
The suggestion of talk to jackjack is a good one as is being careful about who you send information to.
There is someone very reputable in this forum that may be able to help you technically, and to whom you can trust. I believe that is DannyHamilton ...
Thanks for the vote of confidence. Unfortunately, this sort of wallet damage really isn't something I've got the proper skills to help with. I've been meaning to dig more into the actual structure of the wallet.dat file and learn how to parse it, but I just haven't had time for that yet. You could try asking
jackjack. He's the guy who created and maintains pywallet.
I wouldn't give up hope yet. It might still be possible to extract private keys from a significantly damaged wallet.dat file.
It might also be possible to extract a partial/damaged private key. If there are only a handful of bits damaged or missing, a brute-force approach to repair/replace the damaged/missing parts might also be possible.