Well the trailer is now registered in Ontario. Thanks to all who responded to my questions. As others have mentioned it could not have been easier.
Just drive to the border get your form 1 and pay your GST.
Phoned Airstream and they emailed me the Recall Clearance Letter
Register on the RIV with the information from the form 1 and print out the required inspection list.
Take the trailer to CT and get the inspection. No one cared about the Recall letter. CT faxed the completed inspection to RIV and week later I received the new sticker for the side of the trailer.
Took the paper work to Service Ontario and they gave me my new ownership. They did require proof of the dry weight of the unit so the new sticker that RIV sent me came in handy. Paid my PST and that was it.