Here is a timely update from a person that was in a similar situation. I understand the need to understand all the possibilities, but I think you are over thinking this. As @Mike E has posted, CBP has to let you in, and unless you have criminal offenses that they might know about, more than likely they are going to wave you through with little notice. Now you may get a CBP officer that dives deeper, and if they try and cajole you into an I407, refuse. but if you are entering with your spouse, I doubt that will happen. More than likely your encounter will be similar to the OP in the thread below.
Good Luck!