hello guys, here's my lineup and skills and what I did to beat level75. it was so ez to be honest.

1) use hinata skill. that taijutsu green dude will hit hinata. never saw him missing but others will miss.
2) use guy to stop hidan's skill. dont use kakashi and hope none of your teammates will die. if hidan or kakuzu kills one, they'll attack again and it's gg. and hope hinata will not die even from green dude or you wont be able to stop kakuzu.
3) use main and kakashi on kakuzu. stop his skill. hidan must be dead from ignite I didnt have any trouble here to kill him.
4) use main skill on kakuzu (if not dead). he must be dead or so close to dead. btw other yellow dude takes damage somehow and dies, I didnt focus watching him to be honest he just died
5) hidan will revive but hidan and kakuzu will have low hp. at the and only your main and kakashi will stand and they'll be enough to take low hp hidan and kakuzu.
I am not so sure about the order, maybe I mistaken somewhere, didnt expect to beat them with this so didnt watch carefuly. but skill order was like this. Good luck all.
btw to those who says they are low level or bp;
level: 57
bp: 13968 with this formation.