Ack, so sorry to hear about the broken big guy! I did a quick net search and came up with a couple of stores that have them! They don’t say they wouldn’t ship to Canada, so hopefully you’ll have some luck with these.
Sorry about your broken riser, I’ve been having a run lately and it bites, doesn’t it? 🙁
Did you get one of the risers on the websites Zelda found? I really can’t afford it, but I’ve been looking for awhile for one, and hadn’t found any… you spoke up first and have first dibs, though.