Hello Parker,
I gone through this process for my 2008 volvo c70.
1. First you need to send the paper work required to us customs office and confirm it.
When you come to the border for doing right of landing, you need to first go to us customs office, officer will check and sign the papers and stamp ( like 15 to 30 mins )
2. When you reach the Canadian border, Canadian officer will do the rest of paper work. If it is business hours, you can pay riv fees at border itself, if not you got pay it online / mail / person latter at riv office.
Rest of the process is in the papers send by the RIV.
site for RIV is
http://www.riv.ca/Home.aspxHope this helps.
Pramod