($2000) L1, AK TPTK facing minraise

[Munkster]

Step 4 Higher - I took a shot last night seeing an easy field.

Party Poker No-Limit Hold'em Tourney, Big Blind is t15 (10 handed) converter

UTG+2 (t1000)
MP1 (t990)
MP2 (t960)
Hero (t1000)
CO (t1100)
Button (t945)
SB (t985)
BB (t1045)
UTG (t1025)
UTG+1 (t950)

Preflop: Hero is MP3 with K[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img].
UTG calls t15, <font color="#666666">4 folds</font>, <font color="#CC3333">Hero raises to t60</font>, CO calls t60, <font color="#666666">3 folds</font>, UTG calls t45.

Flop: (t205) A[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets t150</font>, CO folds, <font color="#CC3333">UTG raises to t300</font>

Reads:
My image is unknown - I am under a new screen name and this is the first hand I have played in this tournament
Villain - I watched her in the previous step 4 SNGand she seemed to be one of the more weaker players: loose pf (called an allin and a reraise allin w/77 (10bb stack), did not fully understand pot odds (75/150 blinds and she was bb for ~ 425 chips (280 after posting), folded to button push).

I usually raise a little more pf here (65+) but I felt the field was more weak tight than usual.

A couple of questions,
What's my line after the CR?
What's my line if she CR allin?

I feel the optimal line will be something like p% call, (100-p)% fold (esp regarding the 2nd question, if you call/fold all the time it can be easily exploited).

Thanks in advance,
f