Zapped transaction, did rescan - bitcoin lost... :(
I don't think so. If the transaction is removed from the blockchain, it means it was never confirmed.

Thus the UTXO is still unspent, and should still be in your wallet. Are you sure your wallet is updated?

Maybe see if you can find the adresses by executing

listreceivedbyaddress 0 true

Or, if that doesn't show anything, dump all the private keys of your wallet and import them in something like electrum?