My Adjustments to the original and reasons.
1. I moved Kimimaro down 1 spot specifically for Deidara, so he can attack Deidara instead of Sasori's puppet. I do not have as much damage as the original poster so this allows me to kill deidara faster. I also opted for Fire Style flame Jutsu for more damage,
2. Deidara should die within 4 turns or i do not think it is possible as a Fire main as we dont have the healing to come back.
3. You can heal off of the puppet by attacking the puppet with normal attacks for a few rounds instead of killing off Sasori right away.
4. going into the last wave should be almost full health for everyone otherwise the damage might be too much.
5. I had to lvl ALL ninja to max lvl and cultivation and awakening and mood to 25% to their respective stats. Had to get all magatama(well just shy of a few) to lvl 4 otherwise i die too fast or kabuto clones die too fast in 4th wave(they MUST survive animal path pain or it doesnt work)
6. Everybody is 4 Star except Tayuya who is 2 Star with a total BP of 24100 at lvl 75.

PS Time your attacks in Deidara wave properly, meaning, wait until kabuto heals first before using mc or kimimaro skills on deidara.
Hope this helps.

i beat it at lvl 75 which was 2 days ago, since then i have increased in power by 2 days so both my def/res and attack/nin went up, but now it has gotten way harder and i am still lvl 75. I don't understand how that could be? Hard Troll P2W ??

Im not a P2W player, roughing it out like he rest of us , i was referring to if the game itself was geared towards P2W by making it this hard. The problem was that the additional damage and defense i got over the 2 days weren't being counted for some reason and the damage in the final wave by animal path had increased but after i restated everything, it started back working as it should. The timing is a big thing though and you really cant wait until kimimaro attacks because he can start an unwanted combo so you have to use his skill before he attacks kakuzu.