A diversified fighter fleet is nothing special. Malaysia, India, even the rather poor Pakistanis do it. Finland did it back in the days when they were commited to their neutrality. And as I already wrote, I think preserving this neutrality is important for Iraq to prosper. Look no further than Syria. Started out as internal conflict and is now a proxy war for Gulf states vs Iranians first and Russians vs western interventionists second. And given the geography, I bet the Syrian war would pale in comparison to what would happen in Iraq.

Commonality has a lot to be said for. Clearly, you have no experience with Logistics and/or Supply Chain. What you propose would be a Nightmare……..

Less efficient than a single type fleet, yes. But far from a ‘nightmare’. What you seem to overlook is the bigger picture. Iraq doesn’t produce any of the weapon systems itself, therefore Iraqis need to diversify their supplier base. Plus, Iraq doesn’t need sophisticated supply chaines. They don’t invade countries on the other side of the globe.
Much of the maintenance and logistics is done by the OEM anyway.

Except the S300 the AD systems you mentioned are all on order/already delivered, iirc. Biggest challenge imho will be to somehow integrate all those assets into a working ad network. Without networking, they pose as much a thread to the own airforce as to any potential intruder. Are the shortrange SAMs part of an AD network or are they integrated into army formations ?

They don’t want Tiffies. It is quite clear they want Rafales. If that does not work, the IAF will get even more top heavy than it already is with more Flankers. A sensible approach would be to get some used MiG-29 (upgraded to UPG) or M2K as gap filler and finally get the LCA in numbers. But given the structure of Indian procurement process I doubt such practical solutions would be politically acceptable.

If something is an export succes can’t be judged by it’s MTOW. See Su-27 vs MiG-29 for example. F-15 isn’t doing so bad compared to F-18, either.

J-10 may indeed be an option. Even if we assume the Western arms embargo gets dropped, I doubt Iranians would buy American equipment. J-10 fits the bill. Pretty much a canard delta F-16.
Avic is about to get an export license for the type: http://www.globaltimes.cn/content/814399.shtml#.UkdxPj95cbq

It is not only about the hardware. It is mostly about software. Delays and cost overruns are caused mostly by software issues. And an industry programme run on a shoestring budget lacks the feedback from operational use to iron out bugs, improve radar modi and what not.
Plus, how many AESA sets will get delivered to the partner nations ? Italians already made it clear they have no requirenment for an AESA upgrade. Spain ? Can’t afford it. Germany ? Nope, not going to happen. In the end it’s down to UK and Saudi Arabia. How many AESA equipped Typhoons does this make ? 15+ for UK and 24 for Saudi Arabia ? What a joke.

7. No brighter future? I disagree. First of all, F-15SE yet doesn’t exists. If South Korea doesn’t buy it, it probably will never exist, so even less future.
Do you really think that the several times evolved F-15 will have the same (or more) “grow/evolving capability” than the newest Typhoon? I don’t think so. I also must remember here that Eagle wasn’t designed with “grow capability concept”, because it’s more recent. But Eurofighter was designed with it in mind.
Also, Typhoon will operate in more countries than Eagle, in bigger numbers (even more difference when USA will retire them). And both companies depend strongly in export market. I mean, we are talking about two fighters with strong back support, not one in clear minority.

I doubt SK will get anything close to the full SE standard. But even the -K models offer better capabilities than T3A Tiffies. And there is a broader userbase for AESA equipped Eagles. Tranche 3b is dead, and 3a comes with MSA. The Typhoon may have potential, but it will never be explored. Italy and Spain can’t afford even operating them, Germany is not interested in cutting edge hardware for it’s servicemen and the UK/Saudis may not be happy to pay alone for the big ticket items.