Correct, you're asking for one Canadian Dollar Draft for 980 Canadian dollars, made payable to Receiver General for Canada. They will then get it issued from a Canadian clearing bank (RBS, CIBC etc) and send it to you (or you will collect it).
Good question! I'm going to send mine by registered post (i.e. with signature), but I suspect you probably could drop it off to the security people on the door.
As stevebbs says, you are expected to write your name and address on the back of the draft. I would suggest including an accompanying note to reference your UCI, full name and that you are enclosing the landing fee (RPRF) as requested.
