#1 Rule of Naruto: You can't reason with Itachi wankers. They all cling to genjutsu.
The ignorance is real from you man. Full of crap is what you are.
If itachi wants to he can just sit there like madara with a simple susanoo shroud to guard anything against minato. What? Rasengan? No problem a shroud will do. No rib cage needed.
Now on to the real thing. Itachi already has shown to have reaction times as fast as kcm naruto. The dude is strong and powerful. I truly believe MS won't even be needed to beat him as he can use his simulation genjutsu he used against diadera and naruto.
The one finger genjutsu will get minato. He won't know he is in it until itachi makes it obvious. Minato has to switch to sensory type to know. So for all we know, minato can think he is beating itachi then bam, itachi kills him in reality.
Now for tsukiyomi: Quit pulling that "sensor" bs or "won't look into his eyes". Minato is only a close range fighter. He has to get close to itachi. We all know itachi has amazing taijutsu so eventually eye contact will be made. That's if it hasn't already beenade before the battle begins lol.....
Susanoo: Will solo all of minatos summons.
Amaturasu: Not needed.
KA: Could just end the battle there if itachi wanted to. No need to really try.
Again, minato has rasengan and FTG. Not much besides some sealing techniques which won't work on a susanoo user. Ftg is rendered useless by a susanoo shroud. Only imminent before minato is fodderized.