There was a fellow in Southern Ontario that had a lovely trio of Rhino's back in the day (early 90's). I'm pretty sure he is down to one now, but I haven't kept in touch the past few years.
These are the only Rhino's that I had heard of in the country, though I haven't been actively searching for a few years.
Have you had any babies from yours, Steeve?
As for Fiji's, talk to Crutchfield
hahaha
Seriously though, I've heard of more zoological institutions have more and more success with them recently, but nothing more than that. I didn't realize they were even available to private collectors as of yet. Toronto Zoo used to have one (or more) but it's been off display the last few times I've been through.
JonK