After he confirmed I own those addresses with a signed messages we had a deal.

Received: 3 BTC
Hash: https://blockchain.info/tx/b2fab5029be319d6db0ac7744432d08e81fde6b614e2bd7ff6a1f75eb23d62fb
Repaying on: 2nd of October
Repay amount: 4 BTC
Repay to: 1BMx9C43KvgdkS8uS8Rxry1vZYxatux4wu

The guy doesn't want to talk on bitcointalk to keep his name out of this trade and the addresses.
We have made our deal through skype and I can send proofs to a trusted member so he can make sure of this loan (As long as he won't mention the guy's name).

Thanks to that guy and hopefully I might repay before the scheduled time.