I get the distinct impression you don't want a cofounder. You seem keen on having engineers, not this guy. You imagine this guy as a conduit to engineers. Yo

I get the distinct impression you don't want a cofounder. You seem keen on having engineers, not this guy. You imagine this guy as a conduit to engineers. You don't think he's going to add value anytime soon. I don't think you're going to be able to work around these issues personally. You won't be happy with what he's bringing to the table and I suspect he will be unhappy given your perception of him. I don't think there is a right or wrong here, it's going to be about what you're comfortable with and what he is comfortable with and finding a balance if he's going to cofound with you. To me it sounds more like you want another engineer or two, why not just skip business person and get them as cofounders. I know you mentioned difficulty finding them, but partnering with someone who doesn't help you (in reality or in your head) isn't a step forward.