Close, but not close enough. Su-35 will provide Iran with a platform which it will upgrade with its own technology going forward. Iran is not like nations such as India and Saudi Arabia that seem to purchase different fighters jets every few months. Get one good platform and then upgrade it yourself. A few dozen (at least 60) Su-35 will provide Iran with a good added capability until its own stealthy fighters and associated UCAVs are ready to be produced in next 10-15 years. If need be, more fighter jets could be purchased in the meantime but Iran needs to invest as much of its money as possible in its own industries.