Hi James I had the same problem, I ended up buying a LED lighted ,turn signal, brake light licence plate frame from Royal Distributing.
It was $49 from R.D and it looks just like this one....
http://www.jpcycles.com/product/561-012
It looks really sharp when lit up at night and is even highly visible during the day.
It is a bit smaller than Ontario plates, I simply cut with tin snips about a 1/4 inch off both ends and redrilled the licence plate bolt holes to match the frame.
I am really happy with it, It makes the bike stand out, it might be an option for you.
Wiring is a little bit of work, all the signal wires that you need to tap into are under the right side cover on the R3T.
Mac