try to switch to earth main. doing it on lightning main is really hard I can tell you that coz i tried it. the combo rate is so high and with tendo and chiyo chases it will give tendo enough chakra to cast his mystery almost every round starting round 3. so the front line should be with super armor. like earth main or if you have susaso sasuke. gaara etc

did it with i think 64k bp. just need to retry and retry . i know you can do it.