I figured those mods are indeed not very useful even if they'd work. Now I simply added a bunch of Deadeye mods to make sure to have 100% crit chance (with base and +5% of Gorilla Arms). And since they also add a bunch of crit damage increase, it should be good as a offensive boost.
Now I need to figure out if boosting evasion is worth it, since armor for example is useless (i.e. ignored by melee attacks).
Yep, in my opinion, evasion is not very useful (kerensikov is most useful for slowing time and dodge a little bit more easily when you have to). With 100% crit chance, if you have Short Circuit in legendary version, don't forget to equip it, it help (its passive effect help a lot).
Another tip, which is not important, but after talk to Coach Fred and before sitting on the chair (to talk to Viktor), eat/drink and take some boosters (stamina/health), it's not a big "boost", but better than nothing
(and aim abdominals like Viktor say, instead of aiming head, it make a real difference).
I think, well prepared as you are, it should be a piece of cake