Is this too strong? Barb mods for complete playthrough.

Alright, so I played IWD way back when it first came out and never played these two. I want to go back and do the experience, and having done some research I want to play a barbarian, with a big dumb two handed weapon. Now, my objective here is the most fun experience possible. I've messed around a little bit(went archer up to level three or so) and the most fun I've had is watching Dorn just annihilate people. Barbarian seems to be weaker than berserker, perhaps illogically so, and dual wield seems to outscale 2h pretty massively lategame. I want to play a barb for aesthetic reasons, and I want to use 2hs other than swords(probably halberds, even though the consensus seems to be they are weak). I want to mod my game(right now just using SCS, playing on second highest difficulty, it's hard heh) but I don't want to go so crazy that it just becomes too easy as I progress.

So here are my proposed mods:
Add a 3rd pip to 2h style which only barbarians can take, which adds crits at 17&18
Take the mage slayer innate(1% magic resist per level) which everyone says is terrible and double it to 2%
Add a str mod for going past 25 strength so that raging isn't wasted when compared to berserker lategame

Anyway, I want to play one time, on a hard difficulty, but I also don't want to feel like my char is just a tag along to the party. Would these changes be too broken, or just enough to accomplish my objectives? Just don't want to get halfway through BG2 and feel like the npc paladin/dual wielders/mages are carrying Charname.

Probably rolling dwarf, if that matters. Dwarf with a halberd seems amusing.

Thoughts?