Indeed, i'm going to do so. The missing character is not really the last character but somewhere inside the 50.
Your guys are awesome.
Sorry, i wrongfully assumed it was the last character that went missing (wrong copy/paste), but like CIYAM already said, you can repeat the step 50 times

EDIT: btw: you can get the bitcoin-cli binary, connect it to blockchain.info's JSON-RPC API in case you don't want to sync the whole blockchain:
for i in `perl -e '$,=" ";print +(A..Z),(a..z),(0..9)'` ; do bitcoin-cli -rpcconnect=rpc.blockchain.info -rpcport=443 -rpcssl -rpcuser=YourWalletIdentifier -rpcpassword=YourPassword importprivkey "yourkey"$i ; done
Just be carefull: i'm not sure if blockchain will ban your ip after x ammount of tries

ALSO: sweep your wallet and move your funds to a secure wallet once you've used blockchain's API, i would personally not trust an online wallet....
(btw: the approach is untested)