Call Bimmersport (Charlie @ 905.670.9200) in Mississauga and ask for a quote. He probably knows the oem manufacturer. At a minimum, he can save you a bundle on the install.

I bought mine from u-haul and it was C$350, installed. It's rock solid and I have pulled 5200lbs with it. I wouldn't recommend it since it has long stabilizer bar that runs under the truck (pretty ugly imo).