if you want to do it that way then sure. meen's I have 3 people that can vouch me as a good trader in the future. In fact to make the interest a little more fair I will say 1.4 back for each bitcoin lent as there has to be a ok risk to reward for investors and as no one knows me here it would be expected for a little higher APR
so total that would be 3BTC out and returned 4.2
Just to add more info I will be adding 2 more gfx cards to my rig. so my mhash rate will be around 800mhash so I could pay that back with generated coins. in a week but I do plan on funding my account also.