Thanks for your comments.

@jacquesm Average sale varies from 1k per month to 15.Time:8 months. The potential market is in the trillions. "Make sure that you do not end up paying Mr. X his own investment back as a salary, otherwise he's just an equity-for-work employee, not an investor per-se." -Good point.

@michael_dorfman True. The issue is that Mr.X is willing to work on the project for one year without any cash compensation.