What is the correct play here?

[Steverino2]

Piggs Peak NL .25-.50

My first lap around so no reads yet-UTG raises to $2
folded to me in cutoff w/ KK--I reraise to $6
Button and blinds both folds--he just calls the raise
My stack is $19 his is $35
my plan is to bet the flop hard if an ace doesn't appear
Flop= J 7 3 with two spades--he checks to me and I
go all in which is about the size of the pot--he thinks
for a long time--types in A Q of spades and finally calls
of course an ace comes on the turn and he takes it down

my question is this: should I have reraised all in pre flop? just smooth called the raise and go all in on the flop if an ace doesn't appear? Smooth call preflop and bet the size of the pot on the flop? What is the best way to get the money in this type of situation? Thanks