I think Iran make a mistake in insisting Nuke program. They shall abandon it. This will clear the way of sanction for them to buy Russia S-300 or china HQ-9. What I mean is they can upgrade large pool of conventional weapon . Or probably TOT the FC-1 /L-15 / JH-7A and build up a large AF since it has plenty of oil.not even close to the F-18
Iran has traded away many things for the position she get herself into today, which is the nuke program
When it's conventional weapon area is strong. Then it pursue the nuclear program... Lol.