Not sure what you mean by "searching for missing keys" ... can you elaborate?
Shameless plug about my 3rd party recovery service:
https://bitsharestalk.org/index.php?topic=21730.msg296352;topicseen#new
If you really can't figure it out and are willing to compromise accounts .. you can go that route ..
Well I have my accounts imported into 2.0 but somewhere my AGS donations largely seem to have went away. Many things could have happened so I'm not blaming any one thing. I can look around more for different backups but I'd expect it to be this one.
During BTSX we used to give this solution.
So, I was able to get all the BitAssets accounted for, by following the advice on other threads here. iirc, i first issued a:
wallet_regenerate_keys [ACCOUNT-NAME] 10500
then:
wallet_rescan_blockchain <block_number before my missing BitAssets transactions, i used something from late February, eg 1850000>
My takeaway from this thread has been that the above is still feasible in 2.0 ? (No?)
I have a witness_node running+synched and thought maybe I'd be able to use the cli, but it is giving me some transport error. Maybe I need to turn the RPC on, I haven't messed with it a lot once I saw it was the same thing as a server over the internet.
So next step is to figure out how to import this .bin backup into my local cli. This .bin is what I got from my 1 sucessful import where it found previous account names with no errors. So now I want to reimport it to my cli and try a command "wallet_rescan_blockchain". I'm not holding my breath but I still think it is worth the effort.
PS I have no issue sending you the .bin with the imported accounts, but now I am using the account for other things. Unfortunetly I don't think there are any extra steps you could try ?