Well great that your buying that much coins a day. There will likely be people willing to sell. But the only question is, after the deal what happens? Will we expect the Feds knocking at our door? Probably the DEA maybe? Or whatever agency tracking down the money you sent. Maybe it would be better to just do this by cash on hand kind of thing.
No one is going to come knock on your door and if you can supply this amount daily I would have no problem meeting you with cash daily. Can you supply this amount?