k, here are the next ev spreads:
Totodile- 148 HP / 252 Atk / 108 Spe [keep aqua jet, evolving it is fine]
Poliwhirl- 252 hp/216 sp def/ 20 def/20 sp atk [keep as poliwhirl]
I am pretty sure you can still ev after this since my other ev trainer did not finish ev training some others.