Wanted: Powder: unique, bullseye, and trailboss

I'm looking to get into reloading .455 Webley mkii cartridges, but most of the recommended powders are no longer available. I'm interested in buying unique, bullseye, and/or trail boss powder. 

I would prefer an in person deal in Toronto/Oshawa/the GTA, but I'm willing to pay reasonable shipping.

I have a PAL.