[elindauer]

Here are some points for you to consider:

You should look at implied odds, not immediate odds, when deciding what hands are playable against the KK. Ax is definitely playable from either blind and probably outside the blinds as well, although somewhat marginal there.

You'll chop with KK much less often than you'll lose to AA.

You're doing a lot of rounding in your final EV calculation that is going to throw off your answer somewhat.

You're basically on the right track though I think, you just need to be more precise about how often the different events occur.

good luck.
Eric