While I already commented that I think your ship is fine, here is a better example of overplaying KK, and even this I'm not entirely sure of:
Hero $300
SB ($200) Massive donk
BB ($150) Passive fish
Hero is dealt K
K
Hero raises to $10
SB calls
BB calls
Flop ($30) J
:6
7
SB bets $85
BB goes all-in
Hero goes all-in
SB calls
SB shows Q
J
BB shows 6
7
Hero shows K
K
Now this was a snap shove over SB all night because he's truly awful and I could care less what he has. But BB was a bit tough. I just didnt think he'd do this with the nuts and figured he might be overplaying AJ. That plus I simply dont have it in me to fold overpairs to fish regardless of the action. I've been shown too many top pairs and gutshots in these situations to fold anymore. Meh.