I can give you full loan without any signed message. Your account can be hold by trusted escrow if necessary.
He is already in PM communication with me. However since I'll go to bed in half an hour, you may try your luck for giving him the loan. BTW if you don't ask for a signed message, it will be dangerous because that account maybe hacked by a scammer for scamming. He had given a signed message, which is verified, from May 2015 to me, before the forum hack.