Restore Block.io multisig wallet in Electrum I've exported my private keys from Block.io. They're compressed WIF keys (starting with L...).

Additionally I've got the following data from Block.io:


Address type: P2SH (obviously)
Redeem script
Redeem script hex
Two public keys


I've tried to restore that wallet in Electrum with the information I have. But as far as I understand, Electrum needs extended private keys to restore the wallet, right?

So, is there a way to restore that wallet? Maybe in a different wallet client? I've researched a whole evening but couldn't find the answer.
I knew that but I hadn't enough reputation to comment. 

I have found a solution. I've got my BCH today from block.io which was already empty but it had a BTC on the day of fork. 
So what you have to do is: 

First of all you should get from security settings of you block.io profile: "Redeem Script Hex", and two private keys. (actually you will have some more strings and values but only these three required to claim your BCH).

After that:

Go to http://www.motelmaya.com/BCH/BCH.html

I know this seems strange and may cause doubts and believe me I wasn't sure too. But the real deal was: getting BCH (I had 0,5 of BTC at block.io wallet) or getting nothing. 

So, then:


Click +TX
Enter the redeem HEX that you received from block.io in the first box (Address, WIF key or Redeem Script)
Click on "Advanced options" -> "Network" -> Settings and change the network to "Bitcoin Cash (mainnet)"
Click New -> Transaction or +TX once more. 
Put in the amount you want to transfer and the address you are sending to (your new BCH wallet I guess - I've used my blockchain.info wallet address), make sure that the fee is not too high (I've entered something like 0.000317
Click "Submit", you will get a long HEX string. copy it
Click "Sign", paste the copied string, paste the first private key from the  block.io to the "Private key" field, click "Submit", copy the string.
Paste the string into the second box (below the "Private key" field), paste the second private key from the block.io, click Submit, copy the output
Go to "Broadcast", paste the string and click "Submit".


That's it. You will recieve TXid which you will be able to check at https://bitcoincash.blockexplorer.com 

Actually all regards should go to ohad serfaty but I can't comment the post where he advised this method because of low reputation. 

Good luck!