Compared to the stack sizes this is a standard medium sized pot, I Personally bet ~$22-25 on the flop and if that little nugget reraises me the remainder (which he probably will, considering his stack size its raise or fold) its an easy call, he may have a straight draw (most likley 78) a smaller kicker, overplaying a medium PP (77-99) and if he has a set which i think is very unlikley. But if this is the case then you are beat ... no biggie, next hand.
This to me seems like a very simple play, i dont understnad the confusion.