No body would be interested in this kind of offer not to talk of the conditions you're giving, since you're a good and professional trader i expect you to have build your own trading platform through which you would have acquired enough profits from past trading experience you had, someone like me cannot trust you or have you control my trading account.
I have read his reply in a different topic, and although he seems honest and not scammer, but nevertheless, within 5 months, nothing has changed in his pocket, even if he had sufficient skill, there would be no real change in the individual's investments.
I advise you to get a loan and then try to pay off the trading profits. Ask one of your friends or relatives to give you a loan without interest and for a repayment period of 3 months. Test your abilities and if you can pay, share your experience, and then others may get excited and give you money.
I think you are the only one who suggests taking a loan to do trading. Even in investing, gambling and other activities, loaning money is still not advised. It won't still be easy to ask a loan even to the people that we know the most especially when they see that you have no ability of paying it and then you are also known to be a loser.
The best thing that he can do is to find a reliable job so that he can earn a stable income and he can use that money to make more money. He can record his activities and show it when he is going to propose about finding a partner to make his business grow bigger. That should make thing easier for him.