Here is the ending to my story... Called customs the day I was leaving just to check again, the officer told me that all i needed was a bill of sale saying it was now mine. Went with an empty trailer to get it, came back across, and all they did was look at thebill of sale, and open the trailer door, said good luck, and sent me on my way....
Actually canadian customs gave me more of a hassle going into Canada than the us. Going in they made me pull over and inspect the empty trailer. Coming home it was all of about 3 minutes at the booth..