If you can switch to wind main and have Sage Naruto, both Gaara's [Regular and Kazekage] and Iruka, you can pass most of them with 55k. I used Will of D's videos, his guides are pretty good. I'm 51k power, currently on NE161 using his videos :)!

NE140 is really hard with wind, i'll recommend you to change to earth for that one (EM, Kurenai, Lee [Eight Inner Gates] and Iruka).

Other ninjas needed are Ao, Kisame, Temari [Five Kage Summit]. I used BudzGaming guide for NE165.